# CenturyRides.org Complete Inventory


[AB] Alberta (CA)
- Banff to Jasper Icefields Parkway Century | Lake Louise to Jasper | Canadian Rockies / Icefields Parkway | July | https://icefieldsparkwaycycling.com/ | Tags: Alpine, Glaciers, National Parks, Mountain Passes, 100M | Epic high-altitude route riding past hanging glaciers, turquoise glacial lakes, and towering peaks in the Canadian Rockies.
- Tour de Bowness / Ghost Lake Gran Fondo | Calgary / Cochrane | Southern / Rocky Mountain Foothills | August | https://www.tourdebowness.com/ | Tags: Road, Foothills, Big Sky, Prairie, Climbs, 100K, 160K | Challenging ride looping through the rolling foothills of the Canadian Rockies and scenic Ghost Lake country.

[BC] British Columbia (CA)
- Gran Fondo Axel Merckx (Okanagan) | Penticton | Interior / Okanagan Valley | July | https://www.granfondoaxelmerckx.com/ | Tags: Road, Gran Fondo, Vineyards, Lakes, Climbs, 100K, 160K | Celebrated wine-country fondo looping past Lake Okanagan, vineyards, orchards, and steep benchland climbs.
- RBC GranFondo Whistler | Vancouver to Whistler | South Coast / Sea-to-Sky Highway | September | https://www.rbcgranfondo.com/whistler/ | Tags: Alpine, Gran Fondo, Sea-to-Sky, Climbs, Ocean to Mountains, 100K, 122M | Iconic point-to-point ride climbing 122 km along the scenic Sea-to-Sky Highway from Vancouver harbor to Whistler village.

[NS] Nova Scotia (CA)
- Cabot Trail Century Challenge | Baddeck / Ingonish | Cape Breton / Cabot Trail | September | https://cabottrailbiketour.com/ | Tags: Alpine, Coastal, Ocean Views, Steep, Highland Passes, 100K, 160K | Breathtaking coastal century tackling the dramatic climbs and ocean-cliff descents of Cape Breton Highlands National Park.

[ON] Ontario (CA)
- Ride for Karen | Markham / York Region | Greater Toronto Area / Oak Ridges Moraine | September | https://rideforkaren.com/ | Tags: Road, Rolling, Oak Ridges, Charity, 100K, 160K, 200K | Long-running premier charity century traversing the rolling hills, equestrian farms, and forests of York and Simcoe regions.
- Rideau Lakes Cycling Tour (RLCT) | Ottawa to Kingston | Eastern Ontario / Rideau Canal Corridor | June | https://quickrelease.on.ca/rlct/ | Tags: Tour, Multi-Day, Historic, Lakes, Flat, Rolling, 100M, 200M | Epic two-day classic following the historic Rideau Lakes waterway and scenic backroads between Ottawa and Kingston.

[PE] Prince Edward Island (CA)
- Prince Edward Island Coastal Century | Charlottetown / Cavendish | Central / Gulf of St. Lawrence Shoreline | August | https://peicycling.com/ | Tags: Road, Coastal, Red Sands, Rolling, Ocean Views, 100K, 160K | Scenic maritime loop cruising past iconic red sandstone cliffs, tranquil fishing harbors, and rolling farmland.

[QC] Quebec (CA)
- Gran Fondo Mont-Tremblant | Mont-Tremblant | Laurentians / Laurentian Mountains | May | https://granfondotremblant.ca/ | Tags: Alpine, Gran Fondo, Laurentians, Rolling, Climbs, 100K, 160K | Scenic spring challenge navigating the twisting mountain roads, pristine lakes, and forests of the Laurentian Range.
- Tour de l'Île de Montréal | Montreal | Greater Montreal / St. Lawrence River | June | https://www.veloquebec.info/ | Tags: Urban, Festival, St. Lawrence, Flat, Iconic, 50K, 100K | North America's largest urban cycling celebration, offering car-free routes exploring Montreal's distinct neighborhoods and waterfronts.

[BC] Baja California (MX)
- Baja Bike Race Gran Fondo | Tecate to Ensenada | Northern Baja / Wine Country | October | https://bajabikerace.com/ | Tags: Road, Rolling, Climbs, Wine Country, 100K, 120K | Scenic gran fondo traversing mountain passes and the Valle de Guadalupe wine country from Tecate to Ensenada.
- Rosarito Ensenada Beachside Ride | Rosarito to Ensenada | Baja California / Pacific Coast | September | https://rosaritoensenada.com/ | Tags: Road, Coastal, Ocean Views, Hills, Classic, 50M, 80K | Iconic 50-mile coastal ride along the Pacific Ocean highway and rural ridgelines down to Ensenada.

[BCS] Baja California Sur (MX)
- L'Étape La Paz | La Paz | Baja Sur / Sea of Cortez | November | https://laetapamexico.com/ | Tags: Road, Coastal, Desert, Hills, Sea Views, 100K, 125K | Spectacular gran fondo tracing the desert coastline, turquoise waters, and coastal climbs of the Sea of Cortez.

[CDMX] Ciudad de México (MX)
- L'Étape Ciudad de México | Mexico City | Central / Valley of Mexico | November | https://laetapamexico.com/ | Tags: Road, Urban, High Altitude, Iconic, 100K, 130K | Tour de France franchise event giving cyclists closed-course access past the historic monuments and avenues of CDMX.

[MEX] Estado de México (MX)
- Reto Valle de Bravo | Valle de Bravo | Central Highlands / Lake Region | June | https://retovalledebravo.com/ | Tags: Road, Hilly, Mountain Lake, Pine Forests, 100K, 100M | High-elevation mountain century climbing through pine-covered ridges and surrounding Valle de Bravo lake country.

[JAL] Jalisco (MX)
- GFNY Zapopan (Guadalajara) | Zapopan / Guadalajara | Western / Jalisco Highlands | March | https://zapopan.gfny.com/ | Tags: Road, Urban, Rolling, Gran Fondo, 100K, 130K | High-energy gran fondo looping through modern Zapopan boulevards and the surrounding Jalisco foothills.
- Vuelta Chapala | Chapala / Ajijic | Western / Lake Chapala | February | https://vueltachapala.com/ | Tags: Road, Rolling, Lake, High Altitude, 100K, 100M | Epic circumnavigation of Mexico's largest freshwater lake surrounded by rolling mountain vistas.

[NAY] Nayarit (MX)
- GranFondo Riviera Nayarit | Nuevo Nayarit to Bucerías | Pacific Coast / Riviera Nayarit | December | https://www.rbcgranfondo.com/event/nayarit | Tags: Road, Coastal, Tropical, Gran Fondo, 100K, 140K | Challenging tropical gran fondo winding along scenic Pacific coastlines and lush Sierra Madre foothills.

[NL] Nuevo León (MX)
- Raúl Alcalá Challenge Monterrey | Monterrey | Northeast / Sierra Madre Oriental | September | https://raulalcala.com/ | Tags: Road, Alpine, Climbs, Canyons, 100K, 100M | Organized by cycling legend Raúl Alcalá, tackling the dramatic canyon climbs of La Huasteca and Monterrey.

[QR] Quintana Roo (MX)
- GFNY Cozumel | Cozumel | Yucatán Peninsula / Caribbean Coast | November | https://cozumel.gfny.com/ | Tags: Road, Flat, Fast, Ocean Views, Island, Gran Fondo, 100M, 160K | The premier international Caribbean gran fondo, completing two fully supported 80 km oceanfront loops around Cozumel.

[AL] Alabama (US)
- Annual Boll Weevil 100 | Enterprise | Southeast / Wiregrass | May | https://bollweevil100.com/ | Tags: Road, Trail, Flat, Rolling, 100K, 100M | Scenic Wiregrass ride featuring quiet country lanes, flat-to-rolling roads, and trail segments.
- Athens Olde Town Bike Tour | Athens | North / Tennessee Valley | May | https://athensoldetownbiketour.com/ | Tags: Road, Historic, Rolling, Farmland, 100K, 100M | Charming rural route exploring historic downtown Athens, antebellum homes, and Limestone County farmland.
- Boomerang Century | Montgomery | Central / Black Belt | April | https://mgmbikeclub.org/ | Tags: Road, Flat, Rolling, 100K, 100M | Early-season rolling century through the scenic Alabama Black Belt region.
- Cheaha Challenge Gran Fondo | Jacksonville | Northeast / Mount Cheaha | May | https://cheahachallenge.com/ | Tags: Road, Alpine, Hilly, Steep, 100K, 100M, Ultra | Toughest century in the South; features steep climbing up Mount Cheaha with an optional 126-mile Ultra.
- Chief Ladiga Trail Metric Century | Anniston to Piedmont | Northeast | Any season | https://cleburnecounty.us/chief-ladiga-trail/ | Tags: Trail, Paved, Rail-Trail, Flat, Scenic, 100K | Linear paved rail-trail route connecting directly to Georgia's Silver Comet Trail for long-distance riding.
- Cotton Pickin' 100 | Belle Mina / Mooresville | North / Tennessee Valley | October | https://springcity.org/ | Tags: Road, Flat, Fast, Cotton Fields, Autumn, 100K, 100M | Fast, flat autumn century hosted by Spring City Cycling Club winding through historic cotton fields.
- Fall Foliage Gran Fondo (Huntsville) | Huntsville | North / Madison County | October | https://springcity.org/ | Tags: Road, Rolling, Hilly, Autumn, 100K, 100M | Late-season scenic tour taking in vibrant fall colors across northern Alabama ridge country.
- Grandman Century (Battleship Tour) | Fairhope / Mobile Bay | South / Gulf Coast | October | https://grandman.org/ | Tags: Road, Flat, Coastal, Ocean Views, 100K, 100M | Scenic coastal loop tracing the shores of Mobile Bay, Baldwin County waterways, and Gulf plains.
- Hot Hundred | Tuscaloosa | West Central / Black Warrior Valley | July | https://druidcitybicycleclub.com/ | Tags: Road, Rolling, Hills, Summer, 100K, 100M | Mid-summer classic hosted by Druid City Bicycle Club exploring rural Tuscaloosa and Hale counties.
- North Jefferson Century | Gardendale | Central / North Jefferson County | September | https://bhamcycling.org/ | Tags: Road, Rolling, Hilly, 100K, 100M | Scenic ride touring through the rolling hills, river valleys, and quiet roads north of Birmingham.

[AK] Alaska (US)
- Anchorage Solstice Century | Anchorage | Southcentral / Cook Inlet | June | https://anchoragebike.org/ | Tags: Road, Trail, Coastal, Midnight Sun, 100K, 100M | Celebrates the longest day of the year along the Tony Knowles Coastal Trail and Anchorage parkways.
- Denali Century | Cantwell / Denali Park | Interior / Denali | June | https://www.denalicentury.com/ | Tags: Road, Gravel, Alpine, Mountains, Wildlife, 100M | Epic sub-arctic century along the scenic Denali Highway featuring glacier views and rugged mountain terrain.
- Fireweed 400 & Century | Sheep Mountain / Valdez | Southcentral / Glenn Highway | July | https://fireweed400.com/ | Tags: Road, Mountains, Ultra, Glaciers, Scenic, 100M, 200M | Iconic long-distance challenge running along the Glenn and Richardson highways with majestic mountain views.
- Golden Circle Route Century | Skagway to Haines | Southeast / Inside Passage | June | https://kcibr.org/ | Tags: Road, International, Alpine, Fjord, 100M, 150M | Stunning route climbing the White Pass into the Yukon and returning along dramatic coastal fjords.
- Homer Epic 100k | Homer | Southcentral / Kenai Peninsula | March | https://homerepic.com/ | Tags: Fat Bike, Winter, Snow, Coastal, Mountains, 100K | Challenging late-winter snow and gravel bike event traversing the remote Caribou Hills backcountry.
- Iditasport / Iditabike 100 | Big Lake / Susitna Basin | Southcentral / Mat-Su | February | https://iditasport.com/ | Tags: Fat Bike, Winter, Snow, Ultra, Wilderness, 100M | Historic winter ultra on groomed snow trails and frozen rivers across the remote Susitna wilderness.
- Kenai Peninsula Coastal Metric | Seward to Moose Pass | Southcentral / Kenai Peninsula | August | https://kenaipeninsulabike.org/ | Tags: Road, Rolling, Glaciers, Coastal, 100K | Breathtaking metric route winding past Kenai Fjords coastal valleys and turquoise mountain lakes.

[AZ] Arizona (US)
- Bike MS: Arizona | Fort McDowell / Fountain Hills | East Valley / McDowell Mountain | November | https://events.nationalmssociety.org/ | Tags: Road, MTB, Desert, Hills, Charity, Weekend, 100K, 100M | Two-day desert ride traversing rolling Sonoran roads past Fountain Hills and McDowell Mountain Regional Park.
- Chino Grinder | Chino Valley / Williams | Northern / Yavapai & Coconino | September | https://chinogrinder.com/ | Tags: Gravel, High Desert, Forest, Ultra, 100M | Challenging 100-mile gravel endurance grind climbing from high-desert grassland up into pine country.
- El Tour de Tucson | Tucson | Southern / Pima County | November | https://eltourdetucson.org/ | Tags: Road, Signature, Desert, Mountains, 100K, 100M, Ultra | Premier 100-mile cycling event in the country drawing thousands of riders around the Tucson basin.
- El Tour de Zona | Sierra Vista | Southern / Cochise County | March | https://eltourdezona.org/ | Tags: Road, Tour, Stage Ride, Borderlands, 100K, 100M | Multi-day stage ride featuring daily century options across scenic southern Arizona and historic frontier towns.
- GABA Spring Century | Eloy / Casa Grande | Central / Pinal County | April | https://bikegaba.org/ | Tags: Road, Flat, Fast, Desert, 100K, 100M | Greater Arizona Bicycling Association spring classic across open, flat desert plains and agricultural valleys.
- Loop de Loop | Tucson | Southern / Chuck Huckelberry Loop | September | https://bicycletucson.com/ | Tags: Trail, Paved, Flat, Loop, 100K, 100M | Paved, vehicle-free urban century challenge entirely along the continuous Chuck Huckelberry Loop trail network.
- Sedona / Verde Valley Century | Sedona / Clarkdale | Northern / Verde Valley | May | https://sedonacentury.com/ | Tags: Road, Red Rocks, Hilly, Scenic, High Desert, 100K, 100M | High-desert climbs and striking red rock vistas throughout northern Arizona and the Verde River Valley.
- Spirit World 100 | Patagonia | Southern / San Rafael Valley | November | https://spiritworld100.com/ | Tags: Gravel, Borderlands, High Desert, Mountains, 100M | Iconic gravel century exploring the sweeping, golden San Rafael Valley along the southern Arizona border.
- Tour de Cure Arizona | Phoenix / Scottsdale | Central / Valley of the Sun | September | https://diabetes.org/tourdecurearizona | Tags: Road, Charity, Desert, Flat, Rolling, 100K, 100M | Premier fundraising tour through Scottsdale and scenic desert roads beneath the McDowell Mountains.
- Tour de Scottsdale | Scottsdale | Central / Sonoran Desert | April | https://tourdescottsdale.org/ | Tags: Road, Desert, Rolling, McDowell Mountains, 100K, 100M | Fast, scenic loop around the McDowell Mountain Range and pristine Sonoran Desert preserves.
- Tucson Gran Fondo | Tucson | Southern / Sonoran Desert | March | https://tucsongranfondo.com/ | Tags: Road, Rolling, Desert, Saguaro, 100K, 100M | Spring fondo tracing desert flats and scenic foothills surrounded by giant saguaro forests.
- White Mountain Double & Century | Show Low / Pinetop | Eastern / White Mountains | June | https://azreg.org/ | Tags: Road, Alpine, High Altitude, Pines, 100M, 200M | High-elevation mountain challenge climbing through cool ponderosa pine forests and scenic alpine meadows.

[AR] Arkansas (US)
- ArKOZ 100 | Alma / Fort Smith | Western / Boston Mountains | October | https://arkoz100.com/ | Tags: Gravel, Climbs, Mountains, Ultra, 100M | Challenging gravel century tackling steep logging roads and mountain passes in the Ozark National Forest.
- Big Dam Bridge 100 | North Little Rock / Little Rock | Central / Arkansas River | September | https://www.thebigdambridge100.com/ | Tags: Road, River, Bridges, Rolling, 100K, 100M | Arkansas's largest cycling tour crossing the iconic Big Dam Bridge with routes along the Arkansas River.
- Chinkapin Hollow Gravel Grinder | Fayetteville | Northwest / Ozarks | October | https://chinkapinhollow.com/ | Tags: Gravel, Forest, Rolling, 100K, 100M | Premier autumn gravel century cutting through remote dirt roads and hardwood forests of the Ozarks.
- Delta Century | Helena-West Helena | Eastern / Arkansas Delta | September | https://www.deltacentury.org/ | Tags: Road, Flat, River, Delta, 100K, 100M | Fast, flat century touring historic Mississippi River levee roads and delta agricultural plains.
- Eureka Springs Fat Tire Festival | Eureka Springs | Northwest / Ozarks | July | https://eurekaspringsfattirefestival.com/ | Tags: MTB, Trail, Ozarks, Downhill, 100K | Iconic mountain bike festival offering endurance trail options across rugged Ozark singletrack.
- Highlands Gran Fondo | Fayetteville | Northwest / Boston Mountains | May | https://www.granfondonationalseries.com/gran-fondo-highlands | Tags: Road, Ozarks, Climbs, Alpine, 100K, 100M | Rugged elevation profiles traversing the Boston Mountain range and steep Ozark switchbacks.
- Joe Martin Gran Fondo | Fayetteville | Northwest / Ozarks | May | https://www.joemartinstage race.com/ | Tags: Road, Rolling, Climbs, Ozarks, 100K, 100M | Gran fondo ride held alongside the historic Joe Martin Stage Race through scenic Northwest Arkansas.
- Spa City Cycling Classic | Hot Springs | Central / Ouachita Mountains | October | https://www.hotsprings.org/ | Tags: Road, Hilly, Scenic, Lakes, 100K, 100M | Scenic route winding past Hot Springs National Park, thermal valley landmarks, and Lake Ouachita.
- Tour de Rock | North Little Rock | Central / River Valley | June | https://tourderock.org/ | Tags: Road, Rolling, River, Summer, 100K, 100M | Mid-summer central Arkansas tradition looping through Faulkner and Perry county river bottoms.
- Tour de Toad | Conway | Central / River Valley | May | https://www.tourdetoad.org/ | Tags: Road, River Valley, Rolling, 100K | Scenic spring ride through the rolling hills and farmland of the Arkansas River Valley.

[CA] California (US)
- Bike City Century | Davis | Sacramento Valley / Yolo County | May | https://davisbikeclub.org/ | Tags: Road, Flat, Spring Century, Farmland, 100K, 100M | Annual spring century hosted in Bike City USA touring the flat, scenic farm roads and orchards of Yolo and Solano counties.
- Bike MS: Waves to Wine | San Francisco to Rohnert Park | Bay Area to Sonoma | September | https://events.nationalmssociety.org/ | Tags: Road, Coastal, Wine Country, Charity, Weekend, 100K, 100M | Premier fundraising tour following the Pacific Coastline and winding inland into Sonoma County wine country.
- Bike the Coast | Oceanside | Southern California / Coastal Highway 101 | October | https://bike-the-coast.com/ | Tags: Road, Coastal, Ocean Views, Flat, 100K, 100M | Fast, breezy coastal ride cruising along Southern California's iconic Historic Highway 101 and beaches.
- California Coast Classic | San Francisco to Los Angeles | Pacific Coast Highway / Highway 1 | September | https://events.arthritis.org/ | Tags: Tour, Coastal, Multi-Day, Scenic, 100M | Epic 8-day, 525-mile coastal tour down Highway 1 along dramatic cliffs, ocean vistas, and Big Sur.
- Cherry Lake Challenge | Tuolumne City | Central Sierra / Stanislaus NF | October | https://velopromo.com/ | Tags: Alpine, Remote, Climbs, Forest, 100K, 100M | Demanding wilderness climbing challenge deep in Stanislaus National Forest leading toward Cherry Lake.
- Davis Double Century | Davis | Sacramento Valley / Coast Range | May | https://davisbikeclub.org/ | Tags: Road, Ultra, Flat, Rolling, 200M | Historic double century covering 200 miles across northern California valleys, lakes, and mountain passes.
- Death Ride – Tour of the Alps | Markleeville | Sierra Nevada / Alpine County | July | https://deathride.com/ | Tags: Alpine, 14000 Gain, 5 Passes, Ultra, 100M | 103 miles conquering Monitor Pass, Ebbetts Pass, and Carson Pass in the rugged High Sierra.
- Death Valley Century | Furnace Creek | Death Valley National Park | November | https://adventurecorps.com/ | Tags: Desert, National Park, Below Sea Level, Ultra, 100M | Stunning, surreal ride across otherworldly salt flats and desert expanses below sea level.
- Foxy's Fall Century | Davis | Sacramento Valley / Yolo County | October | https://davisbikeclub.org/ | Tags: Road, Flat, Rolling, Autumn, 100K, 100M | Davis Bike Club's beloved autumn classic looping through the rolling Capay Valley and orchard country.
- Great Western Bike Rally | Paso Robles | Central Coast / Wine Country | May | https://greatwesternbikerally.com/ | Tags: Road, Wine Country, Rolling, Weekend, 100K, 100M | Memorial Day weekend cycling festival exploring scenic backroads, vineyards, and oak-studded hills of Paso Robles.
- Mammoth Gran Fondo | Mammoth Lakes | Eastern Sierra / High Altitude | September | https://mammothgranfondo.com/ | Tags: Alpine, High Desert, Mountains, Scenic, 100K, 100M | Breathtaking high-altitude century surrounded by the Eastern Sierra peaks and Mono Lake basin.
- Marin Century | Novato / San Rafael | Bay Area / Marin County | August | https://marincentury.com/ | Tags: Road, Coastal, Redwoods, Hilly, 100K, 100M | Classic Northern California ride featuring Mt. Tamalpais, redwoods, coastal ridges, and Tomales Bay.
- Phil's Cookie Fondo | Malibu | Santa Monica Mountains / Coast | October | https://philsfondo.com/ | Tags: Alpine, Ocean Views, Steep, Climbs, 100K, 100M | Challenging coastal mountain climbs and steep canyon ascents above Malibu with sweeping Pacific views.
- Ride the Point | San Diego | Point Loma / San Diego Bay | November | https://ridethepoint.org/ | Tags: Road, Coastal, Bay Views, Ocean, 100K | Scenic coastal ride touring the Point Loma peninsula, Cabrillo National Monument, and San Diego Bay.
- Sacramento Century Challenge | Sacramento | Sacramento Valley / River Delta | October | https://sacramentocentury.com/ | Tags: Road, Flat, River Delta, Vineyards, 100K, 100M | Pancake-flat, scenic autumn route winding along the Sacramento River Delta and regional farmland.
- Solvang Century | Solvang | Central Coast / Santa Ynez Valley | March | https://bikesolvang.com/ | Tags: Road, Wine Country, Rolling, Classic, 100K, 100M | Central Coast tradition touring through the vineyards, olive groves, and rolling hills of Santa Ynez Valley.
- The Bay Ride | San Francisco | Bay Area / SF Peninsula | August | https://thebayride.org/ | Tags: Road, Urban, Bridges, Coastal, 100K, 100M | Urban century looping around the San Francisco Bay, crossing landmark bridges, and touring the waterfront.
- Tour de Big Bear | Big Bear Lake | Southern / San Bernardino Mountains | August | https://tourdebigbear.com/ | Tags: Road, Gravel, Alpine, High Altitude, 100K, 100M | High-elevation mountain ride tackling challenging climbs, alpine lakes, and pine forests at 6,750+ feet.
- Tour de Fox Wine Country | Fulton / Santa Rosa | Sonoma County / Russian River | September | https://tourdefox.org/ | Tags: Road, Charity, Wine Country, Rolling, 100K, 100M | Michael J. Fox Foundation benefit ride touring picturesque Russian River Valley vineyards and redwood corridors.
- Tour de Fuzz | Santa Rosa | Sonoma County / Wine Country | September | https://tourdefuzz.org/ | Tags: Road, Wine Country, Rolling, Gourmet, 100K, 100M | Celebrated Sonoma ride combining beautiful wine-country loops with rest stops and finish line festivities.
- Tour de Palm Springs | Palm Springs | Southern / Coachella Valley | February | https://tourdepalmsprings.com/ | Tags: Road, Desert, Mountains, Charity, 100K, 100M | Massive winter ride touring through the Coachella Valley with stunning views of Mt. San Jacinto.

[CO] Colorado (US)
- Bridges of the Butte / Gunnison Growler | Gunnison / Crested Butte | Central Rockies / Crested Butte | September | https://crestedbuttecycling.org/ | Tags: MTB, Trail, Alpine, Endurance, 100K | High-altitude mountain bike endurance challenge on technical singletrack and backcountry loops.
- Buffalo Bicycle Classic | Boulder | Front Range / Boulder Canyon | September | https://buffalobicycleclassic.com/ | Tags: Road, Gravel, Canyon, Climbs, 100K, 100M | CU Boulder scholarship benefit offering courses from rolling plains to punishing climbs up Boulder Canyon.
- Colorado's Ride | Crested Butte / Gunnison | Central Rockies / Gunnison Valley | August | https://coloradosride.com/ | Tags: Tour, Multi-Day, Alpine, Scenic, 100K, 100M | Multi-day high-country touring adventure through the spectacular Gunnison Valley and mountain passes.
- Copper Triangle Alpine Cycling Classic | Copper Mountain | Central Rockies / Summit & Eagle | August | https://coppertriangle.com/ | Tags: Alpine, 79 Miles, Passes, High Altitude, 100K | Iconic 79-mile alpine loop ascending Fremont Pass, Tennessee Pass, and Vail Pass around the Continental Divide.
- Denver Century Ride | Denver | Metro Denver / Front Range Foothills | September | https://denvercenturyride.com/ | Tags: Road, Urban, Foothills, Flat, 100K, 100M | Explores Denver's diverse neighborhoods, park systems, and the scenic Front Range foothills.
- Elephant Rock Cycling Festival | Castle Rock | Front Range / Douglas County | June | https://elephantrockride.com/ | Tags: Road, Gravel, Rolling, Front Range, 100K, 100M | The traditional kickoff to Colorado's cycling season featuring rolling Front Range routes and gravel loops.
- Mountains to the Desert Classic | Telluride to Gateway | San Juan Mountains / Dolores River | September | https://m2dclassic.com/ | Tags: Alpine, Canyon, Scenic, River, 100K, 100M | Spectacular descent from the high San Juan alpine down through the sheer red rock canyons of the Dolores River.
- Pedaling for St. Pats | Colorado Springs | Front Range / Pikes Peak | March | https://pedalingforstpats.com/ | Tags: Road, Rolling, Pikes Peak, Metric, 50K, 100K | Early-season Front Range ride exploring rolling terrain beneath the shadow of Pikes Peak.
- Ride the Rockies | Rotating Colorado Towns | Statewide / Rockies | June | https://ridetherockies.com/ | Tags: Tour, Multi-Day, Alpine, Mountain Passes, 100K, 100M | Week-long classic touring Colorado's highest paved mountain passes and iconic mountain towns.
- Stonewall Century | La Veta | Southern / Sangre de Cristo | August | https://stonewallcentury.com/ | Tags: Road, Sangre de Cristo, Mountains, Scenic, 100M | 102 miles out-and-back through dramatic Cucharas Pass and towering granite formations of the Highway of Legends.
- Tour de Cure Colorado | Lone Tree / Littleton | Front Range / Denver Metro | September | https://diabetes.org/tourdecurecolorado | Tags: Road, Charity, Rolling, Foothills, 100K, 100M | ADA fundraising ride touring rolling high-plains roads and views along the southern Denver metro edge.
- Tour de Steamboat | Steamboat Springs | Northwest / Routt County | August | https://tourdesteamboat.com/ | Tags: Road, Gravel, Alpine, Passes, 100K, 100M | Scenic alpine and gravel event crossing Rabbit Ears Pass and rolling ranchlands in northwest Colorado.
- Tour de Vineyards | Palisade | Western Slope / Grand Valley | September | https://coloradocyclingtours.com/ | Tags: Road, Orchards, Vineyards, Rolling, 100K | Scenic autumn metric touring through Palisade wine country, fruit orchards, and along the Colorado River.
- Tour of the Moon | Grand Junction / Fruita | Western Slope / Colorado National Monument | September | https://tourofthemoon.com/ | Tags: Road, Red Rocks, National Monument, Canyons, 100K, 100M | Recreates the iconic Coors Classic stage through the towering red rock monoliths of Colorado National Monument.
- Triple Bypass | Evergreen to Avon | Central Rockies / Continental Divide | July | https://triplebypass.org/ | Tags: Alpine, 118 Miles, 10000+ Gain, Passes, Ultra, 100M | Legendary 118-mile epic conquering Juniper Pass (11,140'), Loveland Pass (11,990'), and Vail Pass (10,560').
- West Elk Bicycle Classic | Gunnison to Crested Butte | Western Slope / Gunnison Valley | September | https://westelkclassic.com/ | Tags: Gravel, Dirt, Passes, Remote, 100M | Epic dirt and gravel century circumnavigating the rugged West Elk Mountains via Kebler Pass.

[CT] Connecticut (US)
- Bike MS: Mohegan Sun Ride | Uncasville | Eastern / Thames River Valley | June | https://events.nationalmssociety.org/ | Tags: Road, Charity, Rolling, River, 100K, 100M | Multi-distance charity tour looping through the quiet farm country and river valleys of eastern Connecticut.
- Bloomin' Metric | Norwalk | Southwest / Fairfield County / Sound Shore | May | https://soundcyclists.com/bloomin-metric/ | Tags: Road, Sound Shore, Coastal, Rolling, 100K | Landmark Sound Shore bicycle tour through Fairfield County's scenic coastline and backcountry.
- Connecticut River Valley Century | Haddam / Chester | South Central / Connecticut River Valley | September | https://crvcycling.org/ | Tags: Road, River Valley, Rolling, Scenic, 100K, 100M | Scenic late-summer century following the historic Connecticut River estuary and quiet rural valleys.
- Farmington Canal Heritage Trail Metric | New Haven to Suffield | Central / Farmington Valley | Any season | https://fcht.org/ | Tags: Trail, Paved, Rail-Trail, Flat, 100K | Continuous paved rail-trail route stretching across Connecticut from Long Island Sound toward Massachusetts.
- Golden Apple Century | Bethel | Western / Fairfield County | September | https://hatcitycyclists.org/ | Tags: Road, Hilly, Rolling, Autumn, 100K, 100M | Challenging late-season century through rolling countryside and reservoir lands of western Connecticut.
- Litchfield Hills Road Race & Century | Torrington / Litchfield | Northwest / Litchfield Hills | August | https://litchfieldhillsbike.org/ | Tags: Road, Hilly, Steep, New England, 100K, 100M | Demanding climbs and scenic descents through covered bridges and historic towns in the Litchfield Hills.
- Tour de Noank | Groton / Noank | Southeast / Mystic Coast | June | https://mysticbicycleclub.org/ | Tags: Road, Coastal, Rolling, Ocean Views, 100K | Scenic shoreline metric tour along Long Island Sound, historic Mystic, and southeastern coastal country.
- Two Ferry Metric Century | Rocky Hill / Glastonbury | Central / Connecticut River | October | https://ctbike.org/ | Tags: Road, Rolling, Historic, Ferries, 100K | Autumn tour crossing the Connecticut River via historic seasonal ferries and scenic farmland roads.

[DE] Delaware (US)
- Amish Country Classic (Bike Amish Country) | Dover | Central / Kent County | September | https://bikeamishcountry.com/ | Tags: Road, Flat, Farmland, Historic, 100K, 100M | Flat and scenic classic touring through the tranquil Amish farming communities around Dover.
- Delaware Gran Fondo | Wilmington | Northern / Brandywine Valley | May | https://delawaregranfondo.com/ | Tags: Road, Brandywine Valley, Rolling, Estates, 100K, 100M | Rolling hills and historic du Pont estates along the scenic Brandywine River Valley.
- Junction & Breakwater / Coastal Trail Century | Lewes to Rehoboth Beach | Southern / Coastal Delaware | Any season | https://destateparks.com/ | Tags: Trail, Crushed Stone, Paved, Coastal, 100K | Scenic multi-trail loops connecting Cape Henlopen State Park, Lewes, and Atlantic coastal pathways.
- Monster Mash Century | Dover | Central / Kent County | October | https://whiteclaybicycleclub.org/ | Tags: Road, Flat, Fast, Autumn, Costume, 100K, 100M | Fun-themed autumn century winding along flat, low-traffic country backroads in central Delaware.
- Pike Creek Valley Metric Century | Newark / Pike Creek | Northern / New Castle County | June | https://whiteclaybicycleclub.org/ | Tags: Road, Hilly, Rolling, Suburban, 100K | Challenging metric tackling the punchy climbs, ridges, and valleys of northern New Castle County.
- Shorefire Century | Middletown | Northern / Coastal Plain | August | https://whiteclaybicycleclub.org/ | Tags: Road, Flat, Fast, Farmland, 100K, 100M | Flat, fast country century through southern New Castle and Kent county agricultural lands.
- Tri-State Century | Newark | Northern / Tri-State Border | August | https://whiteclaybicycleclub.org/ | Tags: Road, Rolling, Hilly, Interstate, 100K, 100M | Cross-border route exploring the rolling hills where Delaware, Maryland, and Pennsylvania meet.

[FL] Florida (US)
- Bike City Century Ride | Clermont | Central Florida / Lake County | May | https://drcsports.com/race/bike-city-century-ride | Tags: Road, Rolling Hills, Lake County, 100M | Challenging ride tackling Central Florida's signature rolling hills, climbs, and lake country.
- Bike MS: The Citrus Tour | Davenport / Polk County | Central Florida / Polk County | March | https://events.nationalmssociety.org/ | Tags: Road, Charity, Groves, Weekend, 100K, 100M | Two-day premier fundraising ride passing through historic citrus groves and quiet rural roads.
- Cross Florida Century (Coast to Coast) | Cocoa Beach to Crystal River | Statewide / Coast to Coast | October | https://spacecoastfreewheelers.com/ | Tags: Road, Ultra, Flat, Coast-to-Coast, 100M, 160M | One-day, 165-mile cross-state ride stretching from the Atlantic Ocean to the Gulf of Mexico.
- Cycle Flagler | Flagler Beach | Northeast Coast / A1A | April | https://www.cycleflagler.org/ | Tags: Road, Coastal, Ocean Views, Flat, 100K, 100M | Scenic ride taking in breezy Atlantic Ocean vistas along historic Highway A1A and canopy roads.
- Gainesville Cycling Festival (Santa Fe / Horse Farm) | Gainesville | North Central / Alachua County | October | https://gccfla.org/gcf/ | Tags: Road, Canopy Roads, Weekend, 100K, 100M | Two-day autumn classic featuring the Santa Fe Century and the scenic Horse Farm Hundred.
- Horrible Hundred | Clermont | Central / Lake County | November | https://horrible-hundred.com/ | Tags: Road, Steep, Hills, Classic, 100K, 100M | Florida's premier hill-climbing century tackling Sugarloaf Mountain and severe rolling ridges.
- Ididaride | White Springs | North Florida / Suwannee River | January | https://suwanneebike.org/events/ididaride.php | Tags: Gravel, Dirt, Forest, River, 100K | Off-road endurance ride along dirt roads, trails, and scenic woodlands along the Suwannee River.
- Intracoastal Century | Saint Augustine | Northeast Coast / St. Johns County | October | https://intracoastalcentury.com/ | Tags: Road, Flat, Coastal, Ocean Views, 100K, 100M | Fast, scenic coastal century rolling along the Atlantic Ocean, Intracoastal Waterway, and A1A.
- Key Largo Steeplechase / Keys Century | Key Largo to Key West | South / Florida Keys | November | https://keyscycling.com/ | Tags: Road, Flat, Island, Ocean Views, Overseas Hwy, 100M | Paved oceanfront century following the Overseas Highway across bridges down to Key West.
- Pedal and Play in Paradise | Punta Gorda | Southwest / Charlotte Harbor | April | https://pedalandplayinparadise.com/ | Tags: Road, Flat, Waterfront, 100K | Flat, scenic routes exploring historic Punta Gorda, rural cattle lands, and Charlotte Harbor.
- Ride to Remember | Gainesville / Alachua | North Central / Alachua | April | https://www.gainesvillecyclists.com/ | Tags: Road, Rolling, Canopy Roads, 100K, 100M | Spring century through historic horse farms, tree-canopied lanes, and quiet North Florida towns.
- Royal Palm Classic | Fort Myers | Southwest / Gulf Coast | March | https://www.caloosariders.org/ | Tags: Road, Flat, Palm Trees, 100K, 100M | Fast, flat coastal-area century touring through scenic Southwest Florida and rural Lee County.
- Six Gap Century of Florida | Brooksville | Central West / Hernando County | November | https://sixgapflorida.com/ | Tags: Road, Hilly, Steep, 100K, 100M | Demanding climbing challenge through the rolling hills and scenic canopies of Hernando County.
- Sweetheart Century & Ride | White Springs | North Florida / Suwannee River | February | https://suwanneebike.org/events/sweetheart.php | Tags: Road, Rural, Scenic, 100K, 100M | Early-season road tour through quiet rural routes and state parks around the Suwannee River Valley.
- Tour Latino | Clermont | Central / Lake County | February | https://www.tourlatino.org/ | Tags: Road, Rolling, Hills, 100K, 100M | Celebratory Latin-themed ride traversing the rare rolling hills and scenic lakes of Lake County.

[GA] Georgia (US)
- BRAG Georgia Bike Fest | Milledgeville / Social Circle | Central / Piedmont | October | https://brag.org/georgia-bike-fest/ | Tags: Road, Tour, Festival, Rolling, 100K, 100M | Autumn cycling festival featuring supported century and metric routes through historic central Georgia.
- BRAG Spring Tune-Up Century | Rutledge / Social Circle | Central / Historic Piedmont | April | https://brag.org/spring-tuneup/ | Tags: Road, Piedmont, Historic, Rolling, 100K, 100M | Bike Ride Across Georgia's annual season opener touring the rolling hills and antebellum towns of Hard Labor Creek.
- Big Creek Quick Six Gran Fondo | Canton / Ball Ground | North / Cherokee County Foothills | May | https://bigcreekquick6.com/ | Tags: Road, Rolling, Hilly, Foothills, 100K, 100M | Challenging ride tackling the punchy climbs, ridges, and rural lanes of the north Georgia foothills.
- Horrible Hundred of Georgia | Monroe / Walton County | East Central / Piedmont | July | https://waltoncyclists.org/ | Tags: Road, Hilly, Heat, Summer, 100K, 100M | Tough mid-summer century featuring relentless rolling terrain and punchy climbs across Walton County.
- Pecan Century | Albany | Southwest / Plantation Country | September | https://pecancentury.com/ | Tags: Road, Flat, Fast, Pecan Groves, 100K, 100M | Flat, fast country century winding through shaded pecan orchards and rural southwest Georgia plains.
- Savannah Century & Coastal Metric | Savannah / Richmond Hill | Southeast / Coastal Georgia | October | https://savannahbicyclecampaign.org/ | Tags: Road, Flat, Coastal, Lowcountry, 100K, 100M | Fast, flat coastal century cruising past live oaks, Spanish moss, tidal marshes, and Lowcountry waterways.
- Silver Comet Trail Century | Smyrna to Cedartown | Northwest / Atlanta Metro to AL Border | Any season | https://silvercometga.com/ | Tags: Trail, Paved, Rail-Trail, Flat, Scenic, 100M | Continuous paved rail-trail century connecting the Atlanta suburbs out to the Alabama state line.
- Six Gap Century | Dahlonega | North Georgia / Blue Ridge Mountains | September | https://6gap.com/ | Tags: Alpine, 11200 Gain, Signature, Mountains, Steep, 100K, 100M | 104 grueling miles tackling Neels, Jack's, Unicoi, Hogpen, and Wolfpen Gaps in the North Georgia mountains.
- Three River Ramble | Rome | Northwest / Floyd County | June | https://romecycling.org/ | Tags: Road, Rolling, River Valleys, 100K, 100M | Scenic tour winding along the Oostanaula, Etowah, and Coosa rivers and rolling Appalachian foothills.
- Ton of Fun Century | Eatonton | Central / Lake Oconee | August | https://tonoffuncentury.com/ | Tags: Road, Rolling, Lakes, Farmland, 100K, 100M | Late-summer classic looping past Lake Oconee, historic Eatonton, and tranquil dairy country.

[HI] Hawaii (US)
- Cycle to the Sun | Paia to Haleakala Summit | Maui / Haleakala Volcano | June | https://cycletothesun.com/ | Tags: Alpine, Climbs, Volcano, Ultra, Steep, 100K | Legendary hill climb ascending 10,000 feet from sea level in Paia to the summit crater of Haleakala.
- Dick Evans Memorial Road Race & Metric | Kailua / Oahu Perimeter | Oahu / North Shore & Windward | August | https://hbl.org/ | Tags: Road, Coastal, Rolling, Island, 100K, 100M | Iconic 112-mile around-the-island challenge wrapping Oahu's rugged North Shore and Windward coastlines.
- Honolulu Century Ride | Honolulu to Swanzy Beach Park | Oahu / Windward Coast | September | https://hbl.org/honolulucenturyride/ | Tags: Road, Coastal, Ocean Views, Island Classic, 100K, 100M | Hawaii's oldest and largest cycling event, tracing Oahu's scenic eastern coastline and Windward cliffs.
- Pedal Iki / Tour de Kauai | Kapaa to Waimea Canyon | Kauai / Garden Isle | August | https://kauaibicycle.org/ | Tags: Road, Canyons, Tropical, Hilly, Scenic, 100K, 100M | Spectacular island century climbing into the red cliffs of Waimea Canyon and along Kauai's lush coast.
- Ride the Big Island Century | Kailua-Kona to Hawi | Big Island / Kohala Coast | October | https://bikethebigisland.com/ | Tags: Road, Coastal, Lava Fields, Rolling, 100M | Challenging 100-mile coastal route along Queen Kaahumanu Highway through exposed volcanic terrain.
- Upcountry Maui Metric Century | Kula / Makawao | Maui / Upcountry | May | https://mauibike.org/ | Tags: Road, Rolling, Volcano, Farms, 100K | Scenic metric ride exploring the cooler elevation, eucalyptus groves, and farmland slopes of Upcountry Maui.

[ID] Idaho (US)
- 4 Peaks Gran Fondo | Pocatello | Eastern / Portneuf Valley | August | https://4peaksgranfondo.com/ | Tags: Alpine, Climbs, Mountains, Gran Fondo, 100K, 100M | Challenging high-altitude route conquering four scenic mountain summits across the Portneuf Range.
- CHAFE 150 Gran Fondo | Sandpoint | Northern / Lake Pend Oreille | June | https://chafe150.org/ | Tags: Road, Alpine, Lakes, Mountains, 100K, 100M, 150M | Scenic 150-mile, 100-mile, and metric routes looping around the Cabinet Mountains and Lake Pend Oreille.
- Cache Valley Century | Preston / Logan (ID-UT) | Southeast / Cache Valley | August | https://cachevalleycentury.com/ | Tags: Road, Rolling, Farmland, Mountains, 100K, 100M | Border classic looping through the scenic mountain-framed farmland and quiet roads of the Cache Valley.
- Gran Fondo Hincapie Boise | Boise | Southwest / Treasure Valley | July | https://hincapie.com/pages/gran-fondo-hincapie/ | Tags: Road, Alpine, Climbs, Bogus Basin, 100K, 100M | High-intensity mountain century featuring scenic foothill riding and the major climb up Bogus Basin.
- HeART of Idaho Century Ride | Idaho Falls | Eastern / Snake River Plain | August | https://heartofidahocenturyride.com/ | Tags: Road, River, Rolling, Farmland, 100K, 100M | Begins at Snake River Landing, winding along the Snake River, basalt plateaus, and scenic agricultural flats.
- Rebecca's Private Idaho (Queen's Stage / Baked Potato) | Sun Valley / Ketchum | Central / Sawtooth Mountains | September | https://rebeccasprivateidaho.com/ | Tags: Gravel, Alpine, High Altitude, Ultra, 100M | Legendary high-country gravel century through the rugged Pioneer and Sawtooth mountain backcountry.
- Ride Idaho | Rotating Idaho Regions | Statewide / Northern Rockies | August | https://rideidaho.org/ | Tags: Tour, Multi-Day, Alpine, Mountain Passes, 100K, 100M | Multi-day fully supported tour tackling iconic alpine passes, river canyons, and historic Idaho logging towns.
- Spud Fondo / Teton Century | Driggs / Victor | Eastern / Teton Valley | August | https://tetonvalleyfoundation.org/ | Tags: Road, Gravel, Alpine, Tetons, 100K, 100M | Scenic high-elevation tour circling the Teton Valley beneath the dramatic Grand Teton mountain range.
- Tour de Bonneville | Idaho Falls / Swan Valley | Eastern / Bonneville County | July | https://tourdebonneville.com/ | Tags: Road, Alpine, River, Rolling, 100K, 100M | Scenic century winding through the Snake River canyon, Swan Valley farmland, and surrounding mountain foothills.
- Trail of the Coeur d'Alenes Century | Mullan to Plummer | Northern / Silver Valley | Any season | https://friendsof-cdatrail.org/ | Tags: Trail, Paved, Rail-Trail, Lakes, Scenic, 100M | Smooth, continuous 73-mile paved rail-trail offering a vehicle-free 100-mile or metric out-and-back across northern Idaho.

[IL] Illinois (US)
- Arlington 500 | Barrington / Arlington Heights | Northeast / Northwest Suburbs | May | https://arlingtonbikeclub.org/ | Tags: Road, Rolling, Farmland, 100K | Early season metric ride winding through equestrian country and rolling roads in northwest Chicagoland.
- Blackhawk Country Roads Metric & Century | Rockford | Northern / Rock River Valley | July | https://blackhawkbicycleclub.org/ | Tags: Road, Rolling, Rural, 100K, 100M | Scenic ride exploring rural roads, wooded river valleys, and rolling farmland of northern Illinois.
- Capital City Century | Springfield | Central | September | https://spfldcycling.org/ | Tags: Road, Flat, Historic, 100K, 100M | Central Illinois century touring historic Lincoln country and open, fast rural flatlands.
- Four Columns Century | Carbondale | Southern / Shawnee NF | October | https://smbc.club/ | Tags: Road, Hilly, Steep, Forest, 100K, 100M | Challenging climbs and rugged autumn scenery through the Shawnee National Forest region.
- Harmon Hundred | Wauconda | Northeast / Lake County | September | https://wheelingwheelmen.org/ | Tags: Road, Rolling, Lakes, Classic, 100K, 100M | Longstanding late-season century through rolling Lake and McHenry county farm country and lakes.
- North Shore Century | Evanston | Northeast / Lake Michigan Shore | September | https://evanstonbikeclub.org/north-shore-century/ | Tags: Road, Flat, Lake, Classic, 100K, 100M | Premier late-summer classic rolling along Lake Michigan shoreline, upscale suburbs, and into Wisconsin.
- Prairie Cycle Tour | Elgin | Northeast / Fox River Valley | July | https://foxvalleybikeclub.org/ | Tags: Road, Rolling, Farmland, 100K, 100M | Challenging country roads through Kane and McHenry counties hosted by the Fox Valley Bicycle Club.
- Ride the Rivers Century | Morrowplots / Godfrey | Southwest / Riverbend | October | https://gatewaycyclingclub.org/ | Tags: Road, Flat, Rolling, River, 100K, 100M | Scenic river road century touring along the Mississippi and Illinois river confluences near Alton.
- Wright Ride | Oak Park | Northeast / Chicagoland | August | https://oakparkcycleclub.org/wright-ride/ | Tags: Road, Urban, Architecture, Metric, 100K | Scenic architectural tour cruising past Frank Lloyd Wright homes and tree-lined historic districts.

[IN] Indiana (US)
- Amishland and Lakes | Howe | Northern Indiana / Michiana | August | https://www.amishlandandlakes.com/ | Tags: Road, Amish Country, Lakes, 100M | Michiana Bicycle Association classic touring peaceful northern Indiana Amish country, quiet paved lanes, and glacial lakes.
- Boone County Classic | Lebanon | Central Indiana / Boone County | May | https://boonecountybicycle.org/ | Tags: Road, Flat, Trail Links, Metric Century | Flat, open country roads and Big 4 Trail links in central Indiana.
- Buffalo Bicycle Stampede | Buffalo | Northwest / White County Lakes | September | https://sagamorebsa.org/htdocs/wordpress/buffalo-stampede/ | Tags: Road, Lakes, 100 Miles, BSA Fundraiser | Scenic century circling Lake Shafer and Lake Freeman, passing wind farms and rural lake country to support scouting programs.
- Cardinal Greenway Century | Muncie | East Central / Delaware County | June | https://cardinalgreenways.org/ | Tags: Paved, Rail-Trail, Traffic-Free, 100M | Paved, vehicle-free rail-trail route along the Cardinal Greenway.
- Countryside Tour & Century | Winona Lake / Warsaw | Northern Indiana / Kosciusko County | May | https://kcvcycling.org/ | Tags: Road, Lakes, Rolling, 100M | Rolling, scenic roads through Kosciusko County and northern Indiana lake country.
- Covered Bridge Century | Parke County |  | September |  | Tags: Road, Historic Bridges | Rolling countryside passing through historic covered bridges.
- DINO Gravel Grovel | Norman / Story | South Central / Brown & Jackson Counties | November | https://www.dinoseries.com/gravel-grovel/ | Tags: Gravel, Fire Roads, Hoosier National Forest, Climbs | Rugged gravel, fire roads, and steep climbs through the Hoosier National Forest.
- Dam to Dam Century Ride | Wabash | Northeast / Wabash County | September | https://visitwabashcounty.com/dam-to-dam/ | Tags: Road, Lakes, 100 Miles, Rolling | Premier Indiana century touring past the Mississinewa and Salamonie reservoirs, scenic dams, and rural Wabash County farmland.
- Dust Bowl 100 | Eminence | Central Indiana / Morgan County | July | https://www.dustbowl100.com/ | Tags: Gravel, Endurance, Rural Farmland, 100M | Premier gravel endurance event through central/southern farmland.
- Great Pumpkin Metric | Evansville | Southwest / Vanderburgh & Posey Counties | October | https://evansvillebicycleclub.org/ | Tags: Road, Rolling, Metric Century, Autumn | Beautiful autumn ride through rolling terrain in Vanderburgh and Posey counties.
- Harvest Homecoming Bicycle Tour | New Albany / Floyds Knobs | Southern Indiana / Floyd County | September | https://www.harvesthomecoming.com/ | Tags: Road, Climbs, Ridge Views, 100M | Challenging climbs and ridge views across Southern Indiana.
- Hilly Hundred | Ellettsville / Bloomington | South Central / Monroe & Owen Counties | October | https://www.hillyhundred.org | Tags: Road, 2-Day Classic, 100 Miles Total, Hilly | Legendary two-day cycling classic tackling 50 hilly miles per day through the scenic fall foliage and challenging steep ridges of southern Indiana.
- Hope Ride | Hope | South Central / Bartholomew County | September | https://hoperide.org/ | Tags: Road, Flat, Rolling, Rural, 100M | Flat-to-rolling country backroads through Bartholomew County.
- Indie 100 | Indianapolis | Central Indiana / Marion-Hamilton-Boone | August | https://indie100.org | Tags: Road, Urban, Trail, 100 Miles | The Indie 100 features Imperial and Metric Century Loops linking central Indiana greenways, cultural districts, and the Marion-Hamilton-Boone, Tri-County Indianapolis metropolitan area.
- Marshall County Blueberry Cruise | Plymouth | Northern Indiana / Marshall County | September | https://www.blueberryfestival.org/ | Tags: Road, Flat, Metric Century, Festival | Mostly flat route held alongside the annual Blueberry Festival.
- Pumpkinvine Bike Ride | Goshen |  | June |  | Tags: Road / Trail, Amish Country | Paved route through northern Indiana farmland and heritage rail trails.
- RAIN Ride (Ride Across IN) | Terre Haute to Richmond |  | July |  | Tags: Ultra, 160 Miles, 1-Day | A 160-mile single-day crossing of Indiana along historic US Highway 40.
- Sizzling Century | Kokomo | North Central / Howard County | July | https://breakaway.club/events/sizzling-century | Tags: Road, Flat, Rural Farmland, 100M | Breakaway Bicycle Club annual summer century rolling along quiet country roads through Howard, Miami, and Cass counties.
- Subaru CASA Cycling Challenge | Lafayette | West Central / Tippecanoe County | May | https://casasubaru.org/ | Tags: Road, Charity, Metric Century, 100M, Subaru Track | Charity endurance ride featuring track laps at Subaru of Indiana Automotive and rural Tippecanoe County roads.
- Three Rivers Festival Tour | Fort Wayne | Northeast Indiana / Allen County | July | https://www.3rvs.com/ | Tags: Road, Rural, 100M, Club Ride | Northeast Indiana rural roads hosted by the 3RVS cycling club.
- Tour de LaPorte | LaPorte | Northwest Indiana / LaPorte County | August | https://tourdelaporte.org/ | Tags: Road, Lakes, Rolling, 100M | Rolling paved roads and scenic lake views in northwest Indiana.
- Tour de Trails Challenge | Columbus | South Central / Bartholomew County | May | https://columbusparkfoundation.org/ | Tags: Road, Trails, Challenge, Rural | Loops exploring the People Trail network and rural Bartholomew County roads.
- Tree City Rolling Tour & Century | Greensburg | Southeast / Decatur County | June | https://treecityrollingtour.com/ | Tags: Road, Rolling, Covered Bridges, 100M | Mix of flat farmland, rolling hills, and historic covered bridges in Decatur County.
- Wabash River Ride | West Lafayette | West Central / Tippecanoe County | August | https://wrcc-in.org/ | Tags: Road, Gravel, River Corridor, Rolling, 100M | Rolling paved roads and gravel options along the Wabash River corridor.

[IA] Iowa (US)
- Bicycle Tour of the Mississippi River Valley (TOMRV) | Bettendorf / Dubuque | Eastern / Mississippi River Bluffs | June | https://qcbc.org/tomrv/ | Tags: Road, Hilly, Bluffs, River, Weekend, 100M, 200M | Iconic two-day classic featuring century routes climbing the scenic limestone bluffs and river valleys of eastern Iowa.
- Core4 Gravel / Iowa Gravel Century | Iowa City | East Central / Johnson County | August | https://core4.bike/ | Tags: Gravel, Rolling, Hills, Dirt, 100K, 100M | Premier gravel challenge traversing the steep gravel rollers, B-roads, and farm ridges of eastern Iowa.
- Cornshuckers Century | Des Moines / Polk City | Central / Saylorville Lake | September | https://desmoinesbicyclingclub.com/ | Tags: Road, Rolling, Lakes, Farmland, 100K, 100M | Hosted by the Des Moines Bicycling Club, looping through rural Polk and Boone counties around Saylorville Lake.
- Gran Fondo Cedar Valley | Cedar Falls / Waterloo | Northeast / Cedar Valley | August | https://granfondocedarvalley.com/ | Tags: Road, Rolling, River, Farmland, 100K, 100M | Scenic tour through the rolling agricultural valleys, historic riverfronts, and countryside of the Cedar Valley.
- Iowa City Classic Century | Iowa City | East Central / Johnson County | May | https://bicoracing.com/ | Tags: Road, Rolling, University, Farmland, 100K, 100M | Early-season club classic tackling the scenic rollers and historic rural towns of Johnson and Washington counties.
- North Central Iowa Century (NICI) | Mason City / Clear Lake | North Central / Lake Region | August | https://northcentraliowabikeclub.com/ | Tags: Road, Flat, Fast, Lakes, 100K, 100M | Fast, flat-to-rolling countryside century exploring Clear Lake, rural wind farms, and northern Iowa farmland.
- RAGBRAI Century Days | Cross-State (Rotating Route) | Statewide / Cross-State | July | https://ragbrai.com/ | Tags: Road, Tour, Multi-Day, Rolling, Historic, 100K, 100M | Iconic Register's Annual Great Bicycle Ride Across Iowa featuring official century loop days across rolling farm country.
- Raccoon River Valley Trail Century | Waukee / Jefferson | Central / Raccoon River Valley | Any season | https://raccoonrivertrail.org/ | Tags: Trail, Paved, Rail-Trail, Loop, Flat, 100K, 100M | Continuous 89-mile paved rail-trail loop with connectors allowing for flat, completely vehicle-free century rides.
- Tour de Madison County (Covered Bridges Century) | Winterset | South Central / Madison County | October | https://madisoncounty.com/ | Tags: Road, Rolling, Covered Bridges, Historic, 100K, 100M | Scenic autumn tour visiting the historic covered bridges and limestone ridge roads made famous across Madison County.
- Tour de Sturgis Falls | Cedar Falls | Northeast / Black Hawk County | June | https://sturgisfalls.org/ | Tags: Road, Trail, Flat, Rolling, 100K | Summer festival metric ride touring the extensive paved trail networks and country roads around Cedar Falls.

[KS] Kansas (US)
- Biking Across Kansas (BAK) | Cross-State (Rotating Route) | Statewide / Cross-State | June | https://bak.com/ | Tags: Tour, Multi-Day, Rolling, Flat, Prairie, 100K, 100M | Iconic eight-day cross-state tour across Kansas featuring optional century and metric stages.
- Cottonwood 200 | Topeka to Council Grove | East Central / Flint Hills | May | https://cottonwood200.org/ | Tags: Road, Rolling, Flint Hills, Multi-Day, Weekend, 100K, 100M, 200M | Multi-day classic touring through the rolling tallgrass prairie hills and historic towns of the Flint Hills.
- Flint Hills 50/100 | Americus | East Central / Flint Hills | April | https://flinthillsgravel.com/ | Tags: Gravel, Flint Hills, Rolling, Wind, 100K, 100M | Early-season gravel grinder exploring remote gravel roads, cattle guards, and open rangelands.
- Flint Hills Trail Century | Osawatomie to Council Grove | East Central / Flint Hills Trail State Park | Any season | https://ksoutdoors.com/State-Parks/Locations/Flint-Hills-Trail | Tags: Trail, Crushed Stone, Rail-Trail, Prairie, 100K, 100M | The longest rail-trail in Kansas, crossing 117 miles of tallgrass prairie, limestone bluffs, and river basins.
- Gorilla Century | Pittsburg | Southeast / Crawford County | September | https://pittstate.edu/ | Tags: Road, Flat, Rolling, University, 100K, 100M | Hosted near Pittsburg State University, tracing quiet rural blacktop roads through southeast Kansas farmland.
- MDC Century (Mano-a-Mano) | Olathe / Gardner | Northeast / Johnson County | August | https://kcbc.org/ | Tags: Road, Rolling, Farmland, 100K, 100M | Longstanding Kansas City area tradition looping through the rolling rural roads of Johnson and Miami counties.
- Midsummer's Day Metric | Lindsborg | Central / Smoky Valley | June | https://lindsborgbicycleclub.org/ | Tags: Road, Flat, Cultural, Prairie, 100K | Festive metric century celebrating Midsummer across the historic Swedish countryside of Little Sweden USA.
- Prairie Fire Century | Wichita / Benton | South Central / Sedgwick County | September | https://wichitapedal.org/ | Tags: Road, Flat, Fast, Prairie, 100K, 100M | Fast, flat autumn century touring through open Kansas prairie, wind farms, and agricultural country.
- Sunflower Century | Lawrence / Douglas County | Northeast / Kaw River Valley | September | https://lawrencebicycleclub.org/ | Tags: Road, Rolling, River Valley, 100K, 100M | Scenic late-summer ride through rolling oak-lined ridges, Kaw River bottomlands, and historic farm roads.
- Unbound Gravel 100/200 | Emporia | East Central / Flint Hills | June | https://www.unboundgravel.com/ | Tags: Gravel, Ultra, Flint Hills, Signature, Race, 100M, 200M | The world's premier gravel endurance race, conquering sharp flint rock and rugged open prairie hills.

[KY] Kentucky (US)
- Bluegrass Century | Richmond | Central / Madison County | August | https://bluegrasscycling.org/ | Tags: Road, Rolling, Farmland, 100M | Fast and scenic century looping through Madison and surrounding central Kentucky horse country.
- Bourbon Country Burn | Lexington | Central / Bluegrass | September | https://bourboncountryburn.com/ | Tags: Road, Tour, Distilleries, Weekend, 100K, 100M | Three-day cycling festival looping past historic bourbon distilleries and thoroughbred horse farms.
- Cameron Ponder Cycling Classic | Elizabethtown | Central / Hardin County | September | https://cameronpondercyclingclassic.com/ | Tags: Road, Rolling, Farmland, Memorial, 100K, 100M | Charity memorial century rolling through scenic Hardin County countryside and rural valleys.
- Cave Country Caper | Bowling Green | South Central / Cave Country | August | https://bgcycling.org/ | Tags: Road, Rolling, Karst, 100K, 100M | Rolling routes past sinkholes, karst topography, and rural roads surrounding Mammoth Cave country.
- Horsey Hundred | Georgetown | Central / Bluegrass | May | https://horseyhundred.com/ | Tags: Road, Rolling, Horse Farms, Bluegrass, Weekend, 100K, 100M | Iconic Memorial Day weekend tradition touring historic thoroughbred farms and scenic Bluegrass country.
- Limestone Cycling Tour | Maysville | Northeast / Ohio River Valley | September | https://limestonecyclingtour.com/ | Tags: Road, Hilly, Steep, River, 100K, 100M | Challenging climbs and panoramic river views through historic limestone country along the Ohio River.
- Mayfest Bicycle Tour | Owensboro | Western / Green River | May | https://owensborobicycleclub.org/ | Tags: Road, Flat, Rolling, 100K | Early-season tour winding through scenic Green River farmland and western Kentucky countryside.
- Old Kentucky Home Bicycle Tour | Louisville to Bardstown | Central / Bourbon Country | September | https://louisvillebicycleclub.org/ | Tags: Road, Rolling, Weekend, 100K, 100M | Longstanding Louisville Bicycle Club weekend ride visiting My Old Kentucky Home State Park.
- Red River Gorge Century | Stanton / Slade | Eastern / Red River Gorge | September | https://redrivergorgecentury.com/ | Tags: Road, Hilly, Steep, Forest, Scenic, 100M | Demanding climbs, spectacular sandstone arches, and winding scenic routes through the gorge.
- Redbud Ride | London | Eastern / Daniel Boone NF | April | https://www.redbudride.com/ | Tags: Road, Rolling, Forest, 100K, 100M | Premier spring ride featuring blooming redbuds and rolling climbs near Daniel Boone National Forest.

[LA] Louisiana (US)
- Cajun Century | Lafayette | South / Acadiana | May | https://cajuncyclists.org/ | Tags: Road, Flat, Cajun Country, Cultural, 100K, 100M | Classic Acadiana century exploring flat prairie backroads, crawfish ponds, and rich Cajun heritage.
- Feliciana Tour | St. Francisville | Central / West Feliciana Parish | April | https://batonrougebikeclub.com/ | Tags: Road, Hilly, Steep, Canopy Roads, Historic, 100K, 100M | One of Louisiana's few climbing rides, featuring steep rolling hills and historic antebellum plantations.
- Heart of Hope LifeCycle | Keithville / Shreveport | Northwest / Piney Woods | June | https://heartofhopelifecycle.com/ | Tags: Road, Piney Woods, Rolling, Charity, 100K, 100M | Rolling charity century through the shaded piney woods, rolling hills, and quiet roads of Caddo Parish.
- Kisatchie Gravel Grinder | Alexandria / Kisatchie NF | Central / Kisatchie National Forest | November | https://kisatchiegravel.com/ | Tags: Gravel, Rolling, Hills, Pine Forest, 100K, 100M | Challenging gravel century traversing red clay rollers and pine ridges inside the Kisatchie National Forest.
- Red River Century | Shreveport / Bossier City | Northwest / Red River Valley | September | https://redriverbicycleclub.org/ | Tags: Road, Flat, Rolling, River Valley, 100K, 100M | Scenic late-summer century touring along the fertile Red River flatlands and surrounding rural backroads.
- Rougarou Ride / Tour de Rouge | Baton Rouge to New Orleans | South / River Parishes | April | https://tourderouge.org/ | Tags: Road, Bayou, Flat, Plantation, River, 100K, 100M | Coastal plain century rolling past live oaks, mossy bayous, and historic Mississippi River plantations.
- Spokes for Hope Century | Monroe / Ruston | Northeast / Ouachita Parish | September | https://bayoucyclists.com/ | Tags: Road, Rolling, Farmland, Pine Woods, 100K, 100M | Scenic ride touring rolling piney hills and rural bayous across northeast Louisiana.
- Tammany Trace Metric & Double Metric | Covington to Slidell | Southeast / St. Tammany Parish | Any season | https://tammanytrace.org/ | Tags: Trail, Paved, Rail-Trail, Flat, Scenic, 100K, 100M | Paved 31-mile linear rail-trail ideal for continuous, vehicle-free metric and out-and-back century routes.
- Tour de Louisiane (Lake Pontchartrain Loop) | Mandeville / Northshore | Southeast / Lake Pontchartrain | October | https://crescentcitycyclists.org/ | Tags: Road, Trail, Flat, Lake, Coastal, 100K, 100M | Scenic loop along the Tammany Trace and coastal roads surrounding Lake Pontchartrain's Northshore.
- Tour du Teche Century | New Iberia / St. Martinville | South / Acadiana & Bayou Teche | October | https://cajuncyclists.org/ | Tags: Road, Flat, Cajun Country, Bayou, 100K, 100M | Scenic flat ride along the winding Bayou Teche, live oak canopies, and historic Cajun French communities.

[ME] Maine (US)
- Bethel Cycling Classic & Century | Bethel / Mahoosuc Range | Western Mountains / Mahoosuc Range | August | https://betheloutdooradventure.com/ | Tags: Road, Alpine, Hilly, Mountains, River Valley, 100K, 100M | Challenging climbs and river valley loops through the White Mountain foothills and Mahoosuc Range.
- BikeMaine Weekend / Tour | Rotating Maine Communities | Statewide / DownEast & Lakes | September | https://bikemaine.org/ | Tags: Road, Tour, Multi-Day, Scenic, 100K, 100M | Bicycle Coalition of Maine's signature tour exploring coastal peninsulas, lakes, and historic mill towns.
- Downeast Sunrise Trail Metric & Century | Ellsworth to Pembroke | DownEast / Sunrise Coast | Any season | https://sunrisetrail.org/ | Tags: Trail, Gravel, Rail-Trail, Remote, Coastal, 100K, 100M | 87-mile multi-use rail corridor cutting through coastal forests, blueberry barrens, and salmon rivers.
- Eastern Trail Metric Century | South Portland to Kennebunk | Southern Coast / Casco Bay | Any season | https://easterntrail.org/ | Tags: Trail, Paved, Crushed Stone, Rail-Trail, Flat, 100K | Vehicle-free greenway connecting Casco Bay coastal marshes to southern Maine towns along the Eastern Trail.
- Kennebunkport Coastal Century | Kennebunkport / Wells | Southern Coast / York County | September | https://southernmainebike.org/ | Tags: Road, Flat, Coastal, Beaches, Lighthouses, 100K, 100M | Late-summer coastal tour past sandy beaches, tidal salt marshes, and historic oceanfront estates.
- Maine Lobster Ride & Roll | Rockland / Camden | Midcoast / Penobscot Bay | July | https://bikemaine.org/lobster-ride/ | Tags: Road, Coastal, Ocean Views, Rolling, 100K, 100M | Iconic coastal classic touring rocky harbors, lighthouses, and fishing villages along Penobscot Bay.
- Moose Century (Moosehead Lake Tour) | Greenville / Moosehead Lake | Highlands / Moosehead Region | August | https://mooseheadlakebiketour.com/ | Tags: Road, Rolling, Lakes, Wilderness, Scenic, 100M | Remote, rugged century tracing the perimeter roads, deep boreal woods, and vistas around Moosehead Lake.
- Mount Desert Island & Acadia Century | Bar Harbor / Ellsworth | DownEast / Mount Desert Island | September | https://downeastcyclists.org/ | Tags: Road, Coastal, Ocean Views, National Park, Hilly, 100K, 100M | Scenic coastal loop wrapping Mount Desert Island, rocky ocean coves, and borders of Acadia National Park.
- Trek Across Maine | Brunswick / Augusta to Lewiston | Central to Coast / Statewide | June | https://action.lung.org/site/TR?fr_id=25150&pg=entry | Tags: Road, Tour, Multi-Day, Charity, Coastal, 100K, 100M | Statewide signature multi-day tour supporting the American Lung Association with single-day century and metric options.

[MD] Maryland (US)
- C&O Canal Towpath Century Challenge | Cumberland to Williamsport / DC | Western to Central / Potomac Corridor | Any season | https://www.canaltrust.org/ | Tags: Trail, Crushed Stone, Rail-Trail, Flat, Scenic, 100M | Continuous non-motorized towpath following the historic Potomac River corridor across Maryland.
- Civil War Century | Thurmont | Catoctin / Piedmont | September | https://www.civilwarcentury.com/ | Tags: Road, Historic, Hilly, Scenic, 100K, 100M | Challenging climbs and historic routes visiting South Mountain, Antietam, and Gettysburg battlefields.
- Garrett County Gran Fondo (Diabolical Double) | McHenry / Deep Creek Lake | Western Mountains / Garrett County | June | https://garrettcountygranfondo.org/ | Tags: Alpine, Hilly, Steep, Mountain Passes, 100K, 100M, Ultra | One of the hardest centuries on the East Coast with severe mountain climbs around Deep Creek Lake.
- Great Chesapeake Bay Swim & Ride / Oxford Century | Oxford / Easton | Eastern Shore / Talbot County | June | https://talbotcountybicycle.org/ | Tags: Road, Flat, Coastal, Maritime, 100K, 100M | Tranquil, flat century winding past historic maritime towns, rivers, and Chesapeake Bay shorelines.
- Indian Head 100 | Indian Head | Southern / Charles County | September | https://ohbike.org/ | Tags: Road, Trail, Rolling, River, 100K, 100M | Hosted by Oxon Hill Bicycle Club, touring quiet country roads and waterways of Southern Maryland.
- Lifeline 100 | Millersville / Annapolis | Central / Anne Arundel County | October | https://lifeline100.com/ | Tags: Road, Trail, Rolling, Scenic, 100K, 100M | Scenic tour of Anne Arundel County combining paved trail networks with quiet Chesapeake Bay roads.
- Sea Gull Century | Salisbury | Eastern Shore / Delmarva | October | https://seagullcentury.org/ | Tags: Road, Flat, Fast, Coastal, Classic, 100K, 100M | One of the premier centuries in the nation, touring flat Eastern Shore farmland and Assateague Island.
- Six Pillars Century | Cambridge | Eastern Shore / Dorchester County | May | https://sixpillarscentury.org/ | Tags: Road, Flat, Fast, Coastal, Wildlife, 100K, 100M | Flat, scenic ride through the marshes and waterways of the Blackwater National Wildlife Refuge.
- Tour de Frederick | Frederick | Central / Monocacy Valley | August | https://tourdefrederick.com/ | Tags: Road, Rolling, Covered Bridges, Historic, 100K, 100M | Scenic routes through rolling Frederick County countryside, crossing multiple historic covered bridges.
- Tug Valley / Frederick Fall Classic | Middletown / Frederick | Central / Middletown Valley | October | https://frederickpedalers.org/ | Tags: Road, Hilly, Autumn, Farmland, 100K, 100M | Late-season ride tackling the scenic ridges, valleys, and autumn foliage of western Frederick County.

[MA] Massachusetts (US)
- Berkshire Cycling Classic / Tour de Greylock | North Adams / Pittsfield | Western / The Berkshires | August | https://berkshirecyclingclassic.com/ | Tags: Alpine, Hilly, Steep, Mountains, 100K, 100M | Demanding climbs and winding descents across the Berkshire Hills and surrounding Mount Greylock.
- Buzzards Bay Watershed Ride | Westport to Woods Hole | South Coast / Buzzards Bay | October | https://www.savebuzzardsbay.org/ | Tags: Road, Coastal, Ocean Views, Rolling, 100K, 100M | Scenic ride following the windswept coastline, cranberry bogs, and historic seaside villages of Buzzards Bay.
- Cape Cod Century (Cape Cod Getaway) | Boston to Provincetown / Hyannis | Southeast / Cape Cod & Coast | June | https://events.nationalmssociety.org/ | Tags: Road, Coastal, Ocean Views, Flat, Rolling, 100K, 100M | Classic coastal route following scenic shore roads, salt marshes, and oceanfront vistas out to Cape Cod.
- D2R2 (Deerfield Dirt Road Randonnée) | Deerfield | Western / Franklin County | August | https://d2r2.franklinlandtrust.org/ | Tags: Gravel, Dirt, Steep, Franklin County, Ultra, 100K, 100M | The pioneer of gravel centuries, famous for unpaved hillclimbs and scenic dirt roads in Franklin County.
- Fall Foliage Classic / Autumn Century | Devens / Wachusett Region | Central / Worcester County | October | https://crw.org/ | Tags: Road, Rolling, Hilly, Autumn, Foliage, 100K, 100M | Spectacular autumn ride through the rolling hills and peak fall foliage around Mount Wachusett.
- Green Mountain Stage Road / Deerfield Century | Greenfield / Deerfield | Western / Pioneer Valley | June | https://pioneervalleybikeclub.org/ | Tags: Road, Rolling, River Valley, Farmland, 100K, 100M | Touring the rich agricultural lowlands and quiet foothill roads of the Connecticut River Valley.
- Hub on Wheels (Boston Urban Tour) | Boston | Greater Boston / Coastal | September | https://bostonbikefest.org/ | Tags: Road, Urban, Harbor, Bridges, 100K | Car-free sections exploring historic Boston neighborhoods, the Emerald Necklace, and Boston Harbor.
- Pan-Mass Challenge (PMC) | Sturbridge / Boston to Provincetown | Statewide to Cape Cod | August | https://www.pmc.org/ | Tags: Road, Tour, Multi-Day, Charity, Coastal, 100K, 100M, Ultra | The nation's largest athletic charity fundraiser, traversing Massachusetts all the way to Cape Cod.
- Shining Sea Bikeway & Canal Century Loop | Falmouth to Bourne | Southeast / Upper Cape | Any season | https://capecodbikeway.org/ | Tags: Trail, Paved, Rail-Trail, Coastal, Flat, 100K | Scenic multi-trail and coastal road loop connecting the Cape Cod Canal and Shining Sea Bikeway.
- The Cranberry Country Century | Lakeville / Plymouth | Southeast / South Shore & Cranberry Bogs | September | https://crw.org/ | Tags: Road, Rolling, Cranberry Bogs, Coastal, 100K, 100M | Charles River Wheelers classic touring through rural southeastern Massachusetts and scenic cranberry bogs.

[MI] Michigan (US)
- Apple Cider Century | Three Oaks | Southwest / Harbor Country | September | https://applecidercentury.com/ | Tags: Road, Rolling, Orchards, Midwest Classic, 100K, 100M | One of the nation's largest and most historic recreational centuries through orchards and vineyards.
- Bike the Bridge (Tour de Belle Isle) | Detroit / Belle Isle | Southeast / Metro Detroit | October | https://tour-de-troit.org/ | Tags: Road, Urban, River, Bridge, 100K | Scenic urban century and metric rides crossing regional landmarks and Belle Isle.
- Bikes & Beers Kalamazoo / Bell's Century | Comstock / Kalamazoo | Southwest | August | https://bikesandbeers.com/ | Tags: Road, Rolling, Brewery, 100K, 100M | Scenic countryside ride departing from Bell's Brewery with metric and full century options.
- Coast to Coast Gravel Grinder | Au Gres to Ludington | Statewide / Cross-State | May | https://micoasttocoast.com/ | Tags: Gravel, Ultra, Forests, Coast-to-Coast, 100M, 200M | Challenging 204-mile and 100-mile gravel race/ride linking Lake Huron to Lake Michigan.
- DALMAC | Lansing to Mackinaw City | Central to Northern Lower | August | https://dalmac.org/ | Tags: Road, Tour, Multi-Day, Century Stages, 100K, 100M | Epic multi-day tour taking cyclists north to the Mackinac Bridge with full century route options.
- Kal-Haven Trail Metric / Double | Kalamazoo to South Haven | Southwest | June | https://friendsofkalhaventrail.org/ | Tags: Trail, Crushed Limestone, Flat, 100K, 100M | Popular linear rail-trail challenge linking Kalamazoo to the Lake Michigan shore.
- Maple City Century | Adrian | Southeast / Lenawee County | September | https://adrianbicycleclub.com/ | Tags: Road, Rolling, Farmland, 100K, 100M | Classic rural century looping through scenic southern Michigan farmland and Irish Hills.
- One Helluva Ride | Chelsea / Hell | Southeast / Washtenaw County | July | https://annarborbicycletouringsociety.org/ohr/ | Tags: Road, Rolling, Hills, 100K, 100M | Scenic route tackling the rolling glacial terrain and dirt road options around Hell and Chelsea.
- Ride Around Torch (RAT) | Elk Rapids / Torch Lake | Northwest Lower | July | https://cherrycapitalcyclingclub.org/ | Tags: Road, Rolling, Lakes, 100K, 100M | Scenic loop around turquoise Torch Lake, Grand Traverse Bay, and chain-of-lakes country.
- Sunrise Side Century | Alpena / Presque Isle | Northeast Lower / Lake Huron | September | https://alpenabikes.org/ | Tags: Road, Flat, Coastal, Lighthouses, 100K, 100M | Scenic coastal loop along Lake Huron visiting historic lighthouses and inland lakes.
- Tour de Leelanau (Leelanau Peninsula Tour) | Suttons Bay / Glen Arbor | Northwest Lower / Leelanau | August | https://cherrycapitalcyclingclub.org/ | Tags: Road, Rolling, Lakes, Wineries, 100K, 100M | Stunning coastal and vineyard route wrapping the Leelanau Peninsula and Lake Michigan shoreline.
- Tour de Troit | Detroit | Southeast / Metro Detroit | September | https://tour-de-troit.org/ | Tags: Road, Urban, Metric, Flat, 100K | Massive urban cycling exploration through historic Detroit neighborhoods and park systems.

[MN] Minnesota (US)
- Cannon Falls Century | Cannon Falls | Southeast / Bluff Country | July | https://cannonfallscentury.com/ | Tags: Road, Blufflands, Rolling, River Valleys, 100K, 100M | Rolling coulees and river bluffs along southeastern Minnesota and the Cannon River Valley.
- Headwaters 100 | Park Rapids / Itasca State Park | North Central / Headwaters | September | https://headwaters100.com/ | Tags: Road, Rolling, Lakes, Pine Forests, Autumn, 100K, 100M | Scenic autumn tour looping through northern lakes and towering pines near the headwaters of the Mississippi River.
- Le Grand du Nord | Grand Marais | Northeast / Gunflint Trail | May | https://www.heckofthenorth.com/le-grand-du-nord | Tags: Gravel, Climbs, Lake Superior, Wilderness, 100K, 100M | Epic gravel endurance ride along the Sawtooth Mountain ridgelines and Lake Superior backcountry.
- Otter Fall Tour (Lakes Century) | Fergus Falls | West Central / Otter Tail County | September | https://fergusfallsbiketour.com/ | Tags: Road, Rolling, Lakes, Farmland, Autumn, 100K, 100M | Autumn century looping past glacial hills, rural farmland, and scenic lakes in Otter Tail County.
- Paavo Nurmi Century / North Shore Metric | Duluth to Two Harbors | Northeast / Lake Superior Shore | August | https://duluthcycling.org/ | Tags: Road, Coastal, Lake Views, Rolling, 100K, 100M | Scenic route along the rugged Lake Superior coastline following the historic North Shore Scenic Drive.
- Ride the Ridges | Winona | Southeast / Driftless Region | September | https://ridetheridgeswinona.com/ | Tags: Road, Hilly, Steep, Bluffs, Driftless, 100K, 100M | Demanding late-summer classic conquering the dramatic limestone ridges and coulees of the Mississippi River Valley.
- Root River Trail Century / Blossom Ride | Lanesboro / Preston | Southeast / Root River Valley | May | https://rootrivertrail.org/ | Tags: Trail, Road, Driftless, Scenic, 100K, 100M | Scenic ride connecting the paved Root River State Trail network with rolling Driftless country backroads.
- St. Paul Classic Bike Tour | Saint Paul | Twin Cities / Ramsey County | September | https://bike-mn.org/mn-bike-walk-series/st-paul-classic/ | Tags: Road, Urban, River, Historic, 100K | Tour through Saint Paul's historic parkways, Mississippi River bluffs, and tree-lined neighborhood boulevards.
- The Heck of the North | Two Harbors | Northeast / North Shore | September | https://www.heckofthenorth.com/ | Tags: Gravel, Forest, Remote, North Shore, 100M | Rugged premier gravel classic grinding through remote logging roads and boreal forests near Lake Superior.
- Tour de Tonka | Minnetonka | Twin Cities / Lake Minnetonka | August | https://www.minnetonkaschools.org/community/tour-de-tonka | Tags: Road, Rolling, Lakes, Suburbs, 100K, 100M | Massive Twin Cities cycling event looping around Lake Minnetonka's bays, peninsulas, and parklands.

[MS] Mississippi (US)
- Bikes, Blues & Bayous | Greenwood | Northwest / Mississippi Delta | August | https://bikesbluesbayous.com/ | Tags: Road, Flat, Bayou, Blues, 100K, 100M | Massive Delta cycling festival winding through agricultural flatlands with local live blues and food stops.
- Gulf Coast Cycling Classic | Ocean Springs / Biloxi | South / Gulf Coast | October | https://mscoastcycling.com/ | Tags: Road, Flat, Coastal, Ocean Views, 100K, 100M | Scenic coastal century following Highway 90 along Gulf Coast beaches, harbors, and bayous.
- Longleaf Trace Century Challenge | Hattiesburg to Prentiss | South / Pine Belt | Any season | https://longleaftrace.org/ | Tags: Trail, Paved, Rail-Trail, Forest, 100K, 100M | Premier 44-mile paved rail-trail corridor winding through pine forests, streams, and southern towns.
- Mississippi Delta Century | Greenwood | Northwest / Mississippi Delta | September | https://greenwoodms.com/ | Tags: Road, Flat, Fast, Delta, Cotton Fields, 100K, 100M | Fast, flat classic touring wide-open Delta farmland, historic blues sites, and cotton country.
- Natchez Trace Century Ride | Ridgeland | Central / Metro Jackson | May | https://ridgelandcycling.com/ | Tags: Parkway, Paved, Smooth, Rolling, 100K, 100M | Pristine riding along the historic Natchez Trace National Parkway and surrounding Madison County roads.
- Ride South Century | Jackson / Ridgeland | Central / Ross Barnett Reservoir | October | https://ridesouth.com/ | Tags: Road, Rolling, Lakes, Parkway, 100K, 100M | Scenic autumn route looping around the Barnett Reservoir and quiet rural Madison County roads.
- Tanglefoot Trail Metric Century | New Albany to Houston | Northeast / Hills Region | Any season | https://tanglefoottrail.com/ | Tags: Trail, Paved, Rail-Trail, Flat, Scenic, 100K | Continuous 43.6-mile paved rail-trail offering seamless, vehicle-free metric and out-and-back rides.
- Tour de Rouge Mississippi Stage | Natchez to Baton Rouge | Southwest / River Country | May | https://tourderouge.org/ | Tags: Road, River, Historic, Rolling, 100K, 100M | Scenic river road segment connecting historic Natchez down through antebellum Mississippi river towns.
- Tupelo Autumn Classic | Tupelo | Northeast / Tombigbee Valley | October | https://tupelobic.com/ | Tags: Road, Rolling, Parkway, Historic, 100K, 100M | Autumn tour combining sections of the Natchez Trace Parkway with rural Lee County backroads.
- Vicksburg Battlefields Century | Vicksburg | West Central / River Bluffs | November | https://vicksburgcycling.org/ | Tags: Road, Hilly, Steep, Historic, River, 100K, 100M | Challenging ride tackling the river bluffs, ridges, and historic memorials around Vicksburg.

[MO] Missouri (US)
- Big Bam (Bicycle Across Missouri) | Rotating Missouri Route | Statewide / Cross-State | June | https://bigbamride.com/ | Tags: Tour, Multi-Day, Rolling, Historic, 100K, 100M | Multi-day rolling tour exploring historic towns, state parks, and scenic rural backroads across Missouri.
- Hillsboro Century / Hills of Jefferson | Hillsboro | East Central / Jefferson County | August | https://gatewaycyclingclub.org/ | Tags: Road, Hilly, Steep, Country, 100K, 100M | Challenging climbing route navigating the steep, technical ridges and river bottoms south of St. Louis.
- Katy Trail Ride (State Park Tour) | Clinton to Machens / St. Charles | Statewide / Missouri River Corridor | June | https://mostateparks.com/page/58016/katy-trail-ride | Tags: Trail, Crushed Stone, Rail-Trail, River, 100M, 200M | Iconic annual state park tour traversing America's longest continuous rail-trail beneath limestone river bluffs.
- Osage River Classic Century | Jefferson City / Osage County | Central / Osage River Valley | September | https://midmocycling.org/ | Tags: Road, Rolling, River, Farmland, 100K, 100M | Scenic ride touring through the wooded river valleys, bluffs, and quiet farming communities of Osage County.
- Pedal the Cause | Chesterfield / St. Louis | East / St. Louis Metro | September | https://pedalthecause.org/ | Tags: Road, Charity, Rolling, River Valley, 100K, 100M | Major cancer research benefit offering metric and full century courses through scenic St. Louis and St. Charles counties.
- Springfield Dogwood Century | Springfield / Willard | Southwest / Greene County | May | https://springfieldbicycleclub.com/ | Tags: Road, Rolling, Ozarks, Spring, 100K, 100M | Spring classic showcasing blooming dogwoods and rolling countryside across southwest Missouri.
- Tour de Coal / Central Missouri Century | Columbia / Boone County | Central / Boone County | September | https://comooutdoors.org/ | Tags: Road, Rolling, Farmland, 100K, 100M | Late-summer century touring rolling agricultural hills, university towns, and low-traffic central Missouri roads.
- Tour de Crawdad | Springfield / Ozark | Southwest / Ozark Mountains | April | https://ozarkgreenways.org/ | Tags: Road, Ozarks, Rolling, Hills, 100K, 100M | Spring tradition tackling rolling terrain, country backroads, and river valleys across the Ozarks.
- Tour de Ste. Genevieve | Ste. Genevieve | Southeast / River Bluffs & Wine Country | May | https://tourdestegenevieve.com/ | Tags: Road, Wine Country, Rolling, Historic, 100K, 100M | Rolling hills through Missouri's historic French wine region, river bluffs, and quiet rural vineyards.
- Tour de Wildwood | Wildwood | East Central / St. Louis County | October | https://tourdewildwood.com/ | Tags: Road, Hilly, Steep, Autumn, 100K, 100M | Scenic autumn century featuring punchy climbs, wooded valleys, and fall foliage in western St. Louis County.

[MT] Montana (US)
- Bitterroot Tour / Century | Hamilton / Missoula | Western / Bitterroot Valley | August | https://bitterrootcycling.org/ | Tags: Road, Mountains, River Valley, Flat, Rolling, 100K, 100M | Cruises between the Bitterroot and Sapphire mountain ranges along scenic rivers and paved trails.
- Flathead Lake Century Loop | Polson / Kalispell | Northwest / Flathead Basin | September | https://flatheadcycling.org/ | Tags: Road, Rolling, Lakes, Big Sky, 100K, 100M | Scenic century circumnavigating Flathead Lake with stunning mountain reflections and cherry orchard views.
- Going-to-the-Sun Road Century / Ride | West Glacier to St. Mary | Northwest / Glacier National Park | June | https://nps.gov/glac/ | Tags: Alpine, Climbs, National Park, Logan Pass, 100K, 100M | Spectacular high-alpine climbing challenge ascending to Logan Pass in Glacier National Park.
- Gravel Rascal / Pioneer Mountains Gravel | Dillon / Polaris | Southwest / Pioneer Mountains | September | https://montanagravel.com/ | Tags: Gravel, Alpine, Remote, Dirt, Mountains, 100M | Challenging high-elevation gravel century traversing remote passes and ghost towns across the Pioneer Range.
- Queen City Century | Helena | Central / Prickly Pear Valley | August | https://helenabicycleclub.org/ | Tags: Road, Rolling, Hilly, Historic, 100K, 100M | Tours the rolling foothills, Continental Divide vistas, and historic mining valleys around Helena.
- Red Lodge Century & Beartooth Challenge | Red Lodge | South Central / Beartooth Mountains | July | https://redlodgecycling.org/ | Tags: Alpine, Steep, High Altitude, Mountain Passes, 100K, 100M | High-altitude climbing route ascending toward dramatic alpine plateaus and the Beartooth Highway.
- Tour de Montana | Rotating Montana Towns | Statewide / Big Sky | July | https://tourdemontana.com/ | Tags: Tour, Multi-Day, Alpine, Big Sky, Scenic, 100K, 100M | Multi-day mountain tour tackling iconic passes, big skies, and remote Rocky Mountain valleys.
- Tour de Rendezvous | Bozeman | Southwest / Gallatin Valley | June | https://gallatincyclists.org/ | Tags: High Valley, Big Sky, Alpine, Rolling, 100K, 100M | High-elevation valley loops framed by Rocky Mountain peaks and scenic Gallatin Range vistas.
- Tour of the Swan River Valley (TOSRV West) | Missoula to Bigfork | Western / Swan Valley & Flathead | May | https://missoulabicycles.org/ | Tags: Road, Tour, Multi-Day, Lakes, Mountains, 100M, 200M | Historic two-day, 220-mile classic looping past Seeley Lake, the Swan Range, and Flathead Lake.
- Whitefish Trail Hootenanny / Gran Fondo | Whitefish | Northwest / Flathead Valley | August | https://whitefishcommunityfoundation.org/ | Tags: Road, Gravel, Alpine, Lakes, Mountains, 100K, 100M | Scenic ride taking in dramatic views of the Whitefish Range, Glacier National Park peaks, and valley lakes.

[NE] Nebraska (US)
- Bicycle Ride Across Nebraska (BRAN) | Cross-State (Rotating Route) | Statewide / Cross-State | June | https://bran-inc.org/ | Tags: Tour, Multi-Day, Prairie, Rolling, 100K, 100M | Longstanding annual cross-state tour supporting scholarships with daily metric and century options.
- Bohemian Alps Century | Prague / Brainard | Eastern / Bohemian Alps | September | https://greatplainscycling.org/ | Tags: Road, Rolling, Hills, Farmland, Historic, 100K, 100M | Challenging rolling hills and scenic Czech heritage farmland through the glacial hills of the Bohemian Alps.
- Cowboy Trail Century Challenge | Norfolk to Valentine | Northern / Niobrara Valley | Any season | https://bikecowboytrail.com/ | Tags: Trail, Crushed Stone, Rail-Trail, Prairie, Bridges, 100M | America's longest rail-to-trail conversion crossing the Niobrara River valley and northern prairie.
- Gravel Worlds 150 & Century | Lincoln | Southeast / Lancaster County | August | https://gravel-worlds.com/ | Tags: Gravel, Rolling, Ultra, Farmland, 100M, 150M | Iconic international gravel classic traversing relentless rolling farm roads and rural Nebraska gravel.
- MoPac Trail & Country Century | Lincoln to Omaha | Eastern / Cass County | Any season | https://lincolnbiketrails.com/ | Tags: Trail, Paved, Crushed Stone, Flat, Rolling, 100K, 100M | Combines the MoPac trail system with scenic rural blacktop connectors between Lincoln and Omaha.
- Monument Century | Gering / Scottsbluff | Western / Panhandle | September | https://monumentcycling.org/ | Tags: Road, High Plains, Buttes, Historic, 100K, 100M | Scenic route featuring high-plains vistas beneath the iconic sandstone bluffs of Scotts Bluff National Monument.
- Platte River Century | Kearney / Grand Island | Central / Platte River Valley | August | https://kearneycycling.org/ | Tags: Road, Flat, River Valley, Farmland, 100K, 100M | Fast, flat century following the historic Platte River Valley and central Nebraska agricultural plains.
- Solstice Century (Omaha) | Omaha | Eastern / Douglas & Sarpy Counties | June | https://oobc.org/ | Tags: Road, Trail, Rolling, River, 100K, 100M | Celebrates the summer solstice with routes exploring the Omaha metro trail network and rolling river country.
- Spring Affair Century | Lincoln | Southeast / Salt Valley | April | https://greatplainscycling.org/ | Tags: Road, Flat, Rolling, Farmland, 100K, 100M | Early-season flat-to-rolling century looping through quiet rural backroads and farm towns around Lincoln.
- Tour de Nebraska Century | Rotating Route / Sandhills | Statewide / Sandhills | June | https://tourdenebraska.com/ | Tags: Tour, Prairie, Sandhills, Multi-Day, Rolling, 100K, 100M | Routes highlighting the open ecology of the Nebraska Sandhills, historic towns, and sprawling prairie.

[NV] Nevada (US)
- America's Most Beautiful Bike Ride | Lake Tahoe / Stateline | Western / Lake Tahoe | June | https://bikethewest.com/americas-most-beautiful-bike-ride/ | Tags: Alpine, Lake Loop, Climbs, Classic, 100K, 100M | Historic 72-mile circumnavigation of Lake Tahoe featuring a full 100-mile century climbing into Carson Valley.
- Cathedral Gorge Gravel Grinder | Panaca / Pioche | Eastern / Lincoln County | May | https://lincolncountynevada.com/ | Tags: Gravel, High Desert, Canyons, Remote, 100K, 100M | Remote gravel century passing through Cathedral Gorge State Park and expansive Great Basin valleys.
- Edible Pedal 100 | Carson City / Washoe Valley | Western / Carson Valley | September | https://ediblepedal100.org/ | Tags: Road, Rolling, Alpine, Foothills, 100K, 100M | Scenic ride exploring Carson Valley, Washoe Valley, and the Sierra foothills paired with local food stops.
- Honor Ride Las Vegas | Las Vegas / Henderson | Southern / Clark County | November | https://projecthero.org/events/las-vegas-honor-ride | Tags: Road, Vegas Strip, Desert, Charity, 100K | Charity ride supporting veterans, looping from Henderson and the Las Vegas Valley into scenic desert foothills.
- Race the Rails | Ely | Eastern / Great Basin | September | https://elynevada.net/race-the-rails/ | Tags: Road, MTB, Great Basin, High Desert, 100K | Unique event where cyclists race against a historic steam locomotive across high-desert mountain terrain.
- Red Rock Canyon Century | Las Vegas / Summerlin | Southern / Red Rock Canyon | April | https://lasvegasbikeclub.org/ | Tags: Road, Desert, Scenic Loop, Red Rocks, 100K, 100M | Challenging high-desert loop touring the rugged sandstone bluffs and scenic loop of Red Rock Canyon.
- Ruby Mountain Century | Elko / Lamoille | Northeast / Ruby Mountains | July | https://elkobikeclub.org/ | Tags: Alpine, High Altitude, Canyons, Climbs, 100K, 100M | High-elevation climbing challenge into the glacially carved canyons and scenic alpine peaks of the Ruby Mountains.
- Silver State 508 | Reno | Northern / Great Basin Desert | September | https://www.the508.net/ | Tags: Ultra, Desert Highway, Mountain Passes, 100M, 500M | Legendary endurance challenge crossing the Loneliest Highway in America and ten rugged mountain passes.
- Tour de Tahoe (Bike Big Blue) | Lake Tahoe / Stateline | Western / Sierra Nevada | September | https://bikethewest.com/tour-de-tahoe/ | Tags: Alpine, Lake Loop, Climbs, Scenic, 100K, 100M | Circumnavigation of Lake Tahoe with dramatic alpine views, Emerald Bay climbs, and an optional 100-mile loop.
- Valley of Fire Century | Moapa Valley / Overton | Southern / Moapa Valley | October | https://lasvegasbikeclub.org/ | Tags: Road, Red Rocks, Desert, Climbs, 100K, 100M | Scenic desert century traversing the dramatic fiery red Aztec sandstone formations of Valley of Fire State Park.

[NH] New Hampshire (US)
- Bicycle Tour of the Mount Washington Valley (MWV Century) | North Conway | Eastern / Mount Washington Valley | August | https://mwvcentury.com/ | Tags: Road, Alpine, Scenic, River Valleys, 100K, 100M | Scenic loop circling Mount Washington Valley with stunning vistas of the Presidential Range.
- Granite State Autumn Century | Concord / Warner | Central / Merrimack Valley | October | https://granitestatewheelers.org/ | Tags: Road, Rolling, Hilly, Autumn, Foliage, 100K, 100M | Late-season ride taking in peak autumn foliage across rolling country lanes and historic towns.
- Great North Woods Century | Gorham / Colebrook | Far North / Great North Woods | July | https://greatnorthwoodscycling.org/ | Tags: Road, Wilderness, River, Mountain Passes, 100M | Remote, low-traffic century touring past Dixville Notch and deep northern boreal forests.
- Hubbard Green Mountain / Monadnock Century | Keene / Peterborough | Southwest / Monadnock Region | August | https://monadnockcycling.org/ | Tags: Road, Rolling, Hilly, Covered Bridges, 100K, 100M | Challenging climbs, covered bridges, and rural farm country looping around historic Mount Monadnock.
- Kancamagus Highway Century Loop | Lincoln / Conway | Central / White Mountain NF | June | https://whitemountaincyclists.org/ | Tags: Alpine, Climbs, Mountain Passes, National Forest, 100K, 100M | Iconic route climbing across Kancamagus Pass and through deep White Mountain National Forest valleys.
- Lake Winnipesaukee Century Loop | Laconia / Meredith | Lakes Region / Central | July | https://lakesregioncycling.com/ | Tags: Road, Rolling, Lakes, Scenic, 100K, 100M | Scenic loop circumnavigating Lake Winnipesaukee with waterfront views and rolling hill country.
- Mount Washington Century | North Conway | Northern / White Mountains | August | https://mountwashingtoncentury.org/ | Tags: Alpine, White Mountains, Mountain Passes, Steep, 100M | 100-miler climbing through scenic mountain notches including Franconia and Crawford Notches.
- Northern Rail Trail Century Challenge | Lebanon to Boscawen | Central / Merrimack & Dartmouth | Any season | https://fnrt.org/ | Tags: Trail, Crushed Stone, Rail-Trail, Flat, Scenic, 100K, 100M | 58-mile linear rail-trail along rivers, ponds, and covered bridges suitable for century-distance out-and-backs.
- Seacoast Century | Hampton Beach | Southeast / Coastal Shoreline | September | https://granitestatewheelers.org/seacoast-century/ | Tags: Road, Coastal, Ocean Views, Flat, Classic, 100K, 100M | New England coastal classic exploring Atlantic shoreline, tidal marshes, and quiet coastal backroads.
- Three Ponds Metric & Century | Milton / Rochester | East Central / Strafford County | June | https://straffordcyclists.org/ | Tags: Road, Rolling, Lakes, Rural, 100K, 100M | Rolling countryside tour visiting historic mills, quiet lakes, and scenic agricultural roads.

[NJ] New Jersey (US)
- City to Shore (Bike MS 150) | Cherry Hill to Ocean City | South / Pine Barrens & Jersey Shore | September | https://events.nationalmssociety.org/ | Tags: Road, Pine Barrens, Flat, Ocean Views, Charity, 100K, 100M, 150M | Fast, flat century cruising through the Pine Barrens to the ocean boardwalk in Ocean City.
- D&R Canal / Delaware River Greenway Metric | Frenchtown to Trenton | West Central / Delaware River Corridor | Any season | https://dandrcanal.org/ | Tags: Trail, Crushed Stone, Rail-Trail, River, Flat, 100K | Scenic non-motorized towpath following the Delaware River past historic river towns, locks, and wooden bridges.
- Farmland Flat Tour | Ringoes / Flemington | Central / Hunterdon County | May | https://cjbiking.org/ | Tags: Road, Flat, Farmland, Rolling, 100K, 100M | Scenic ride touring through the rolling farmland, horse pastures, and historic rural roads of Hunterdon County.
- Gran Fondo NJ (Garden State Fondo) | Morristown | North / NJ Highlands | September | https://granfondonj.com/ | Tags: Road, Highlands, Rolling, Steep, Gran Fondo, 100K, 100M | Premier gran fondo through the rolling wooded hills, reservoirs, and countryside of northern NJ.
- Highlands Gran Fondo | Butler / West Milford | North / Highlands & Skylands | June | https://www.granfondonationalseries.com/ | Tags: Alpine, Hilly, Steep, Lakes, Gran Fondo, 100K, 100M | Part of the National Series, tackling rugged climbs, reservoir passes, and lush state forest ridges.
- Jersey Shore Century Ride | Long Branch / Belmar | Central / Monmouth & Ocean Counties | June | https://jerseyshorecyclists.org/ | Tags: Road, Flat, Coastal, Ocean Views, Boardwalk, 100K, 100M | Flat and breezy shoreline century following the Atlantic coastline, barrier islands, and bay inlets.
- Pinelands Triple Loop Century | Batsto Village / Hammonton | South / Pine Barrens Reserve | October | https://pinelandsalliance.org/ | Tags: Road, Flat, Pine Barrens, Historic, Autumn, 100K, 100M | Tranquil, flat century winding past cedar swamps, cranberry bogs, and historic ironworks in the Pine Barrens.
- Sourland Spectacular Century | Skillman / Hopewell | Central / Sourland Mountain | September | https://sourlandspectacular.com/ | Tags: Road, Hilly, Steep, Rolling, Nature, 100K, 100M | Demanding climbs and scenic descents through the heavily forested boulders and preserves of Sourland Mountain.
- Sussex County Fall Foliage Century | Newton / Branchville | Northwest / Skylands Region | October | https://sussexcycling.org/ | Tags: Road, Hilly, Autumn, Farmland, Foliage, 100K, 100M | Challenging autumn ride highlighting peak fall foliage, Kittatinny ridge views, and rolling dairy farm country.
- Twin Lights Ride | Highlands | Central / Monmouth County Coast | September | https://www.bike.nyc/events/twin-lights-ride/ | Tags: Road, Coastal, Rolling, Ocean Views, Lighthouses, 100K, 100M | Coastal classic starting under the Navesink Twin Lights, exploring ocean views and rolling horse country.

[NM] New Mexico (US)
- Cimarron Canyon Century | Eagle Nest / Cimarron | Northeast / Colfax County | June | https://cimarroncycling.com/ | Tags: Road, Canyon, Palisades, High Plains, 100K, 100M | Scenic route descending dramatic Palisades rock walls through Cimarron Canyon toward the historic Santa Fe Trail.
- Day of the Tread | Albuquerque | Central / Sandia Foothills | October | https://dayofthetread.com/ | Tags: Road, Costume, Festival, Rio Grande, Charity, 100K, 100M | Day of the Dead-themed charity century and metric ride looping along the Rio Grande and Sandia Mountain foothills.
- Enchanted Circle Bicycle Tour | Red River | Northern / Sangre de Cristo | August | https://enchantedcirclebiketour.com/ | Tags: Alpine, Scenic Byway, Mountain Passes, High Altitude, 100M | 85-to-100-mile loop encircling Wheeler Peak, climbing Bobcat Pass and Palo Flechado Pass in the Sangre de Cristos.
- Gila Monster Gran Fondo | Silver City | Southwest / Gila Wilderness | October | https://tourofthegila.com/ | Tags: Alpine, Gran Fondo, Climbs, National Forest, 100K, 100M | High-elevation climbing challenge finishing at the historic Gila Cliff Dwellings National Monument.
- Mesilla Valley Metric & Century | Las Cruces / Mesilla | Southern / Mesilla Valley | April | https://lascrucesbiketour.com/ | Tags: Road, Flat, Pecan Groves, Organ Mountains, 100K, 100M | Spring classic tracing the lush Rio Grande pecan groves against the dramatic backdrop of the Organ Mountains.
- Santa Fe Century | Santa Fe | North Central / Santa Fe County | May | https://santafecentury.com/ | Tags: High Desert, Turquoise Trail, Mountains, Historic, 100K, 100M | Loops through the Ortiz Mountains and historic mining towns of Madrid and Golden along the Turquoise Trail.
- Taos Autumn Century | Taos | Northern / Taos Valley | September | https://taoscycling.org/ | Tags: Road, High Desert, Mountains, Rio Grande Gorge, 100K, 100M | Scenic autumn tour crossing the Rio Grande Gorge Bridge beneath the high peaks of the Sangre de Cristo Range.
- Tour de Acoma | Acoma Pueblo | Northwest / High Desert & Red Rocks | September | https://tourdeacoma.com/ | Tags: Desert, Red Rocks, Native Heritage, Scenic, 100K, 100M | Century route winding through the sacred ancestral sandstone mesas and high-desert landscapes of Sky City.
- Tour of the Rio Grande Bicycle Century | Albuquerque | Central / Rio Grande Valley | September | https://riograndecentury.com/ | Tags: Road, Flat, Fast, River Valley, Farmland, 100K, 100M | Flat and scenic ride following the historic Rio Grande basin and green agricultural valley south of Albuquerque.
- White Sands Century | Alamogordo | South Central / Tularosa Basin | October | https://tularosacyclists.org/ | Tags: Road, High Desert, Flat, Rolling, Mountain Views, 100K, 100M | Fast, flat autumn century across the Tularosa Basin framed by White Sands and the Sacramento Mountains.

[NY] New York (US)
- Bon Ton Roulet | Cortland / Finger Lakes | Central / Finger Lakes | July | https://bontonroulet.com/ | Tags: Road, Wineries, Lakes, Rolling, Multi-Day, 100K, 100M | Multi-day tour and rolling century circuits around Seneca and Cayuga lakes, featuring historic wineries and waterfalls.
- Catskill Mountain Century / Tour de Kingston | Kingston / Woodstock | Southeast / Catskills | September | https://tourdekingston.org/ | Tags: Road, Hilly, Steep, Mountains, Autumn, 100K, 100M | Demanding climbs and winding descents across the Catskill Mountain preserve, Ashokan Reservoir, and Ulster County.
- Empire State Trail Century Challenge | Albany to New York City | East / Hudson River Corridor | Any season | https://empiretrail.ny.gov/ | Tags: Trail, Paved, Crushed Stone, Rail-Trail, River, 100M | Scenic continuous multi-use pathway following the Hudson River Valley past historic estates and river bluffs.
- Hamptons Century Ride | Southampton / Montauk | Long Island / South Fork | September | https://hamptonsclassicbike.org/ | Tags: Road, Flat, Coastal, Ocean Views, Lighthouses, 100K, 100M | Coastal late-summer century cruising past ocean beaches, historic windmills, and farmland out to Montauk Point.
- High Peaks Gran Fondo / Tupper Lake Century | Tupper Lake | Northern / Adirondacks | June | https://adirondackcycling.com/ | Tags: Alpine, Adirondacks, Mountains, Lakes, Climbs, 100K, 100M | Challenging mountain route climbing through the rugged High Peaks wilderness, Olympic passes, and glacial lakes.
- NYC Century Bike Tour | New York City | New York City / Five Boroughs | September | https://transalt.org/ | Tags: Road, Urban, Bridges, Parks, Waterfront, 100K, 100M | The nation's iconic 100-mile urban ride traversing all five boroughs, historic bridges, greenways, and city parks.
- Ride for Roswell | Amherst / Buffalo | Western NY / Niagara Frontier | June | https://rideforroswell.org/ | Tags: Road, Flat, Charity, River, Lakes, 100K, 100M | Major cancer fundraising ride offering flat-to-rolling metric and century routes along Lake Erie and the Niagara River.
- Saratoga Autumn Century | Saratoga Springs | Capital District / Saratoga County | September | https://saratogabicycleclub.org/ | Tags: Road, Rolling, Historic, Autumn, Foliage, 100K, 100M | Touring historic battlefield country, horse farms, and scenic foothills of the Adirondacks during peak fall foliage.
- Sean's Ride | Chatham | Capital District / Hudson Valley | April | https://seansride.com/ | Tags: Road, Hudson Valley, Rolling, Farmland, Charity, 100K, 100M | Spring memorial ride exploring the scenic rolling farm country, orchards, and quiet lanes of Columbia County.
- Tour de Loop / Cayuga Lake Century | Ithaca | Central / Finger Lakes | August | https://fingerlakescycling.org/ | Tags: Road, Rolling, Lakes, Gorges, Wine Country, 100K, 100M | Scenic loop circumnavigating Cayuga Lake past steep gorges, vineyards, and scenic lakeside hamlets.

[NC] North Carolina (US)
- Assault on Mt. Mitchell | Spartanburg (SC) to Mt. Mitchell | Western / Blue Ridge Mountains | May | https://theassaults.com/ | Tags: Alpine, 10000 Gain, Signature, Mountains, Steep, 100M | 102.7 grueling miles finishing at the summit of the highest peak east of the Mississippi.
- Blood, Sweat & Gears | Valle Crucis | Western / High Country | June | https://bloodsweatandgears.org/ | Tags: Alpine, Climbs, Mountains, Steep, 100K, 100M | Demanding mountain century tackling steep climbs around Snake Mountain and the Blue Ridge Parkway.
- Blue Ridge Parkway Century Challenge | Asheville to Parkway Overlooks | Western / Blue Ridge Mountains | September | https://blueridgebiketours.com/ | Tags: Alpine, Parkway, Mountain Passes, Scenic, 100M | Scenic high-elevation tour climbing iconic overlooks, viaducts, and ridge passes along the Blue Ridge Parkway.
- Bridge to Bridge Incredible Challenge | Lenoir to Grandfather Mountain | Western / High Country | September | https://b2bchallenge.com/ | Tags: Alpine, Climbs, Mountains, Steep, 100M | Epic 102-mile mountain challenge climbing over 8,000 vertical feet to the summit of Grandfather Mountain.
- Carolina Tarwheels BikeFest Century | Hillsborough | Central / Triangle Piedmont | August | https://tarwheels.net/ | Tags: Road, Rolling, Farmland, Piedmont, 100K, 100M | Piedmont classic touring scenic rural roads, historic farms, and rolling hills of Orange and Person counties.
- Cycle North Carolina (Mountains to Coast) | Cross-State (Rotating Route) | Statewide / Cross-State | October | https://cyclenorthcarolina.org/ | Tags: Tour, Multi-Day, Mountains to Coast, Scenic, 100K, 100M | Signature seven-day cross-state tour traversing from the Blue Ridge Mountains down to the Atlantic coast.
- French Broad River Century | Brevard / Asheville | Western / Transylvania County | August | https://brevardcycling.org/ | Tags: Road, River Valley, Rolling, Mountains, 100K, 100M | Scenic loop along the French Broad River valley surrounded by Pisgah National Forest peaks.
- Outer Banks Century (OBX Tour de Duck) | Duck / Nags Head | East / Outer Banks | October | https://outerbankscycling.org/ | Tags: Road, Flat, Coastal, Ocean Views, Lighthouses, 100K, 100M | Flat, windswept coastal century cruising along Highway 12 past dunes, barrier island soundscapes, and lighthouses.
- Sandhills Sandpiper Century | Pinehurst / Southern Pines | South Central / Sandhills | September | https://sandhillscycling.org/ | Tags: Road, Rolling, Pine Forests, Historic, 100K, 100M | Rolling century exploring longleaf pine reserves, horse farms, and historic resort country in the Sandhills.
- Tour de Llama / Yadkin Valley Century | Elkin | Northwest / Yadkin Valley Wine Country | June | https://tourdellama.org/ | Tags: Road, Rolling, Wine Country, River, 100K, 100M | Scenic ride touring rolling vineyards, historic river valleys, and llama farms in the Yadkin Valley.

[ND] North Dakota (US)
- Badlands Gravel Battle | Medora | Western / Badlands | May | https://badlandsgravelbattle.com/ | Tags: Gravel, Badlands, Buttes, Rugged, 100M, 120M | Demanding gravel century grinding through the rugged clay buttes and scenic backcountry of the North Dakota Badlands.
- CANDISC (Cycle Across North Dakota) | Cross-State (Rotating Route) | Statewide / Cross-State | August | https://candisc.net/ | Tags: Tour, Multi-Day, Prairie, Rolling, 100K, 100M | Iconic weeklong cross-state bicycle tour highlighting scenic badlands, historic towns, and wide-open prairie.
- Enchanted Highway Century | Regent to Gladstone | Southwest / Enchanted Highway | June | https://enchantedhighwaytour.com/ | Tags: Road, Rolling, Art Sculptures, Prairie, 100K, 100M | Scenic country century passing massive folk-art scrap metal sculptures towering over rural southwest prairie blacktop.
- Maah Daah Hey 100 | Medora / Watford City | Western / Little Missouri Badlands | August | https://experienceland.org/maah-daah-hey-100/ | Tags: MTB, Trail, Singletrack, Ultra, Badlands, 100M | Legendary singletrack endurance test traversing 106 miles of exposed ridges, grasslands, and badlands terrain.
- Mandan Missouri River Century | Mandan / Bismarck | Central / Missouri River Valley | August | https://bismarckcyclists.org/ | Tags: Road, River Valley, Rolling, Prairie, 100K, 100M | Scenic late-summer century following the rolling bluffs and historic routes along the Missouri River.
- Red River Valley Century | Fargo / Grand Forks | Eastern / Red River Valley | September | https://fargocycling.org/ | Tags: Road, Flat, Fast, Farmland, 100K, 100M | Ultra-flat, fast autumn century cutting through fertile Red River agricultural flatlands and historic border crossings.
- Roughrider Century | Dickinson / Medora | Western / Stark & Billings Counties | June | https://dickinsonbikers.org/ | Tags: Road, Rolling, Badlands, Historic, 100K, 100M | Scenic ride connecting the western high plains to the gateway of Theodore Roosevelt National Park.
- Sakakawea Century Loop | Garrison / Pick City | Central / Lake Sakakawea | July | https://lakesakakaweacycling.com/ | Tags: Road, Rolling, Lakes, Big Sky, 100K, 100M | Scenic loop along the expansive shorelines, state parks, and Garrison Dam bluffs of Lake Sakakawea.
- Sheyenne River Valley Century | Valley City / Fort Ransom | Southeast / Sheyenne River Valley | September | https://sheyenneriverbikers.org/ | Tags: Road, Rolling, River Valley, Historic, Foliage, 100K, 100M | Scenic Byway tour navigating the wooded ravines, rolling farmlands, and historic bridges of the Sheyenne River Valley.
- Turtle Mountain Century | Bottineau | Northern / Border Range | July | https://tmbikeclub.org/ | Tags: Road, Border Range, Forest, Lakes, Rolling, 100K, 100M | Forested hills and glacial lakes along the scenic international US-Canada boundary.

[OH] Ohio (US)
- Amish Country Century | Millersburg / Sugarcreek | Northeast / Holmes County | June | https://puregiftofgod.org/ | Tags: Road, Hilly, Steep, Scenic, 100K, 100M | Challenging rollers and climbs through Holmes County farmland and valleys.
- Dog Days Wine Tour | Silver Lake / Kent | Northeast | July | https://akronbike.org/ | Tags: Road, Rolling, Wineries, 100K, 100M | Rolling northeast Ohio roads passing local wineries, lakes, and farmland.
- Great Ohio Bicycle Adventure (GOBA) | Rotating Ohio Regions | Statewide | June | https://goba.com/ | Tags: Road, Tour, Camping, Multi-Day, 100K, 100M | Iconic week-long loop tour featuring layover century and metric options.
- Hancock Horizontal Hundred | Findlay | Northwest | September | https://hancockcycleclub.net/ | Tags: Road, Flat, Fast, Wind, 100K, 100M | Pancake-flat, wind-exposed rural roads through northwest Ohio.
- Huntington Towpath Century Ride | Cleveland to New Philadelphia | Northeast | September | https://canalwaypartners.org/ | Tags: Trail, Crushed Stone, Paved, Scenic, 100M | Scenic continuous route entirely along the historic Ohio & Erie Canal Towpath.
- Pelotonia | Columbus | Central / Southeast | August | https://pelotonia.org/ | Tags: Road, Charity, Rolling, Hilly, 100K, 100M | Premier cancer research benefit ride across rolling central and southeastern Ohio terrain.
- Portage River Tour | Elmore / Oak Harbor | Northwest / Lake Erie Basin | June | https://toledobicycleclub.org/ | Tags: Road, Flat, Fast, Coastal, 100K, 100M | Fast, flat paved country roads near the western Lake Erie basin.
- Red Flannel Metric Century | Oberlin | North / Lorain County | October | https://loraincountybicycleclub.org/ | Tags: Road, Rolling, Autumn, 100K | Crisp autumn tradition hosted by the Lorain County Bicycle Club.
- Sweet Corn Challenge | Richfield / Peninsula | Northeast / Cuyahoga Valley | July | https://sweetcornchallenge.com/ | Tags: Road, Hilly, National Park, 100K, 100M | Scenic climbs and valleys surrounding Cuyahoga Valley National Park.
- Tour of the Scioto River Valley (TOSRV) | Columbus to Portsmouth | Central to Southern | May | https://outdoor-pursuits.org/tosrv/ | Tags: Road, Rolling, River, Weekend, 100M, 200M | Historic two-day classic tracing the scenic Scioto River valley.
- Wright Wride | Yellow Springs / Dayton | Southwest / Miami Valley | August | https://daytoncyclingclub.org/ | Tags: Road, Rolling, Scenic, 100K, 100M | Miami Valley club classic featuring quiet country roads and rolling ridges.

[OK] Oklahoma (US)
- DAM J.A.M. Bicycle Ride | Pryor |  | September |  | Tags: Road, Lake Country | Popular 100-mile circuit weaving past Lake Hudson and Grand Lake.
- FreeWheel Oklahoma | Statewide |  | June |  | Tags: Tour, Cross-State | Annual cross-state expedition with dedicated century stages.

[OR] Oregon (US)
- Bike MS Oregon (Ride the Valley) | McMinnville | Northwest / Willamette Valley | September | https://events.nationalmssociety.org/ | Tags: Road, Vineyards, Rolling, Charity, 100K, 100M | Scenic charity century winding past lush vineyards, rolling hazelnut groves, and historic wine country.
- Blackberry Bramble Century | Roseburg | Southwest / Umpqua River Valley | August | https://umpquavelo.org/ | Tags: Road, Rolling, River, Vineyards, 100K, 100M | Scenic tour winding along the scenic North and South Umpqua rivers, timberlands, and rolling vineyard country.
- Bridge of the Gods Century / Gorge Ride | Cascade Locks / Hood River | Northern / Columbia River Gorge | June | https://columbiarivergorgebike.com/ | Tags: Road, Gorge, Waterfalls, Climbs, Scenic Byway, 100K, 100M | Stunning route tracing the Historic Columbia River Highway past dramatic canyon walls and cascading waterfalls.
- Cascade Gran Fondo | Bend | Central / High Desert & Cascades | July | https://cascadegranfondo.com/ | Tags: Alpine, Gran Fondo, Volcano, High Desert, 100K, 100M | High-desert century featuring sweeping views of the Three Sisters and the climb along the Cascade Lakes Highway.
- Covered Bridge Bicycle Tour | Eugene / Cottage Grove | West Central / Southern Willamette Valley | July | https://eugenebicyclists.org/ | Tags: Road, Covered Bridges, River, Rolling, 100K, 100M | Scenic tour through the foothills and river valleys of Lane County visiting numerous historic wooden covered bridges.
- Crater Lake Century | Klamath Falls / Fort Klamath | Southern / Cascade Range | August | https://craterlakecentury.com/ | Tags: Alpine, Volcanic Rim, High Altitude, National Park, Steep, 100M | High-altitude climbs circling the rim caldera and deep blue waters of Crater Lake National Park.
- Monster Cookie Metric Century | Salem / Keizer | Northwest / Willamette Valley | April | https://salembicycleclub.org/ | Tags: Road, Metric, Willamette Valley, Flat, Rolling, 100K | Early-season classic touring through scenic farmland, hazelnut orchards, and river crossings of the Willamette Valley.
- Oregon Outback / Ochoco Gravel Century | Prineville | Central / Ochoco Mountains | June | https://ochocogravel.com/ | Tags: Gravel, Forest, Alpine, High Desert, 100M | Challenging gravel century navigating ponderosa pine forests, mountain ridges, and remote gravel roads in the Ochocos.
- Peach of a Century | Salem | Northwest / Marion County | September | https://salembicycleclub.org/ | Tags: Road, Rolling, Farmland, Orchards, Autumn, 100K, 100M | Late-summer harvest century traversing rolling country roads, hop fields, and fruit orchards around the Mid-Willamette Valley.
- Reach the Beach Oregon | Portland / Newberg to Pacific City | Northwest / Coast Range to Pacific Ocean | May | https://action.lung.org/site/TR?fr_id=25152&pg=entry | Tags: Road, Coastal, Ocean Views, Forest, Charity, 100K, 100M | Premier cross-state benefit riding from the Willamette Valley through the Coast Range out to Pacific City's dory fleet.

[PA] Pennsylvania (US)
- Brandywine Valley Tour | West Chester / Chadds Ford | Southeast / Chester County | May | https://brandywinebicycleclub.com/ | Tags: Road, Rolling, Hilly, Historic, Estates, 100K, 100M | Spring classic tracing the rolling hills, equestrian estates, and historic battlegrounds of the Brandywine Valley.
- Covered Bridge Century | Lancaster | Southeast / Lancaster County & Amish Country | September | https://lancasterbikeclub.net/ | Tags: Road, Amish Farmland, Covered Bridges, Rolling, Historic, 100K, 100M | Rolling farmland ride crossing through historic wooden covered bridges and tranquil Amish country.
- Fall Foliage Century / Three Creek Century | Newville / Carlisle | South Central / Cumberland Valley | September | https://threecreekcentury.com/ | Tags: Road, Rolling, Farmland, Autumn, 100K, 100M | Scenic ride rolling through the Cumberland Valley along winding trout streams, limestone ridges, and farms.
- French Creek Iron Tour | Kimberton / Phoenixville | Southeast / Chester County | June | https://irontour.org/ | Tags: Road, Rolling, Historic, Farmland, 100K, 100M | Scenic tour through the preserved farmlands, iron heritage sites, and rolling country lanes of Chester County.
- GAP & C&O Canal Trail Century Challenge | Pittsburgh to Connellsville / Ohiopyle | Southwest / Laurel Highlands | Any season | https://gaptrail.org/ | Tags: Trail, Crushed Stone, Rail-Trail, River, Bridges, 100M | Continuous car-free rail-trail century riding through the scenic Youghiogheny River Gorge and Laurel Highlands.
- Lehigh Valley Covered Bridge Century | Allentown / Bethlehem | East / Lehigh Valley | August | https://lehighwheelmen.org/ | Tags: Road, Rolling, Covered Bridges, Farmland, 100K, 100M | Touring historic red covered bridges, limestone valleys, and scenic rural parklands of the Lehigh Valley.
- Pedal PGH | Pittsburgh | Western / Three Rivers | August | https://bikepgh.org/events/pedalpgh/ | Tags: Road, Bridges, Urban, River Valleys, Hilly, 100K, 100M | Urban classic traversing iconic three-rivers bridges, neighborhood climbs, and riverside greenways across Pittsburgh.
- Scenic Schuylkill Century | Pottstown / Valley Forge | Southeast / Schuylkill River Valley | August | https://scenicschuylkillcentury.com/ | Tags: Road, River Valley, Rolling, Historic, 100K, 100M | Scenic ride touring along the historic Schuylkill River corridor, wooded rolling ridges, and countryside.
- Tour de Pocono / Pocono Mountains Century | Stroudsburg / Jim Thorpe | Northeast / Pocono Mountains | September | https://poconomountainsbiketour.com/ | Tags: Alpine, Hilly, Steep, Waterfalls, Forests, 100K, 100M | Challenging mountain route climbing through steep wooded notches, river gorges, and scenic Pocono plateaus.
- Wilderness 101 | Coburn / State College | Central / Rothrock State Forest | July | https://mountainbikeva.com/wilderness-101/ | Tags: MTB, Trail, Singletrack, Forest, Ultra, 100M | Iconic endurance mountain bike race conquering 101 miles of rugged ridge climbs and singletrack in Rothrock.

[RI] Rhode Island (US)
- Bike MS: Ride the Rhode | Kingston / Narragansett | South County / Coastal Rhode Island | June | https://events.nationalmssociety.org/ | Tags: Road, Coastal, Ocean Views, Charity, 100K, 100M | Scenic two-day charity tour with single-day century routes exploring coastal beaches, salt ponds, and rolling farmland.
- Blackstone River Valley Metric Century | Woonsocket / Lincoln | North / Blackstone Valley | May | https://blackstoneheritagecorridor.org/ | Tags: Road, Trail, Historic, River, Rolling, 100K | Touring the birthplace of the American Industrial Revolution along the scenic Blackstone River and canal paths.
- East Bay Bike Path & Farm Coast Century | Providence to Little Compton | East Bay / Coastal Shoreline | Any season | https://riparks.ri.gov/ | Tags: Trail, Road, Coastal, Rail-Trail, Flat, 100K, 100M | Combines the paved East Bay Bike Path with scenic rolling backroads across the historic Rhode Island Farm Coast.
- Newport Classical Century Loop | Middletown / Newport | Aquidneck Island / Newport Mansions | October | https://newportbicycleclub.org/ | Tags: Road, Coastal, Ocean Views, Historic, Estates, 100K | Scenic autumn island loop rolling past Ocean Drive, dramatic Atlantic cliffs, and gilded-age Newport mansions.
- Ocean State Tour / Narragansett Bay Century | Warwick / Bristol | East Bay & West Bay / Narragansett Bay | August | https://narragansettbaywheelmen.org/ | Tags: Road, Coastal, Bay Views, Rolling, 100K, 100M | Scenic route circumnavigating coastal peninsulas, historic harbors, and waterfront parkways around Narragansett Bay.
- Rhode Island Quad Counties Century | Scituate / Foster | Northwest / Scituate Reservoir & Uplands | July | https://nbwclub.org/ | Tags: Road, Hilly, Rolling, Reservoirs, Forests, 100K, 100M | Challenging ride navigating the quiet wooded hills, reservoirs, and rural backroads of western Rhode Island.
- South County Coastal Century | Westerly / Charlestown | South County / Atlantic Shore | September | https://southcountycyclists.org/ | Tags: Road, Flat, Coastal, Salt Marshes, Lighthouses, 100K, 100M | Late-summer coastal classic following quiet shore roads past barrier beaches, wildlife refuges, and historic Watch Hill.
- The Flattest Century in the East (TFCE) | Tiverton / Little Compton | East Bay / Coastal Farm Country | September | https://nbwclub.org/tfce/ | Tags: Road, Flat, Fast, Coastal, Classic, 100K, 100M | Narragansett Bay Wheelmen classic touring flat, scenic coastal farmland, ocean shorelines, and quiet country lanes.

[SC] South Carolina (US)
- Cherokee Foothills Scenic Century | Gaffney / Pickens | Upstate / Scenic Highway 11 | June | https://upstatecycling.org/ | Tags: Road, Scenic Byway, Rolling, Foothills, 100K, 100M | Scenic ride tracing the Highway 11 corridor along state parks, Table Rock vistas, and the Blue Ridge Escarpment.
- Cross-State Tour of South Carolina (Ride SC) | Greenville to Charleston | Statewide / Foothills to Coast | April | https://bicyclesc.org/ | Tags: Tour, Multi-Day, Rolling to Flat, Scenic, 100M | Multi-day cross-state expedition traversing the state from the Upstate foothills down to historic Charleston harbor.
- FestiVELO | Walterboro | Lowcountry / Colleton County | November | https://festivelo.org/ | Tags: Road, Tour, Festival, Lowcountry, Flat, 100K, 100M | Multi-day Lowcountry cycling celebration featuring supported century loops past Spanish moss, swamps, and plantations.
- Gaston County / Palmetto Cycling Classic | Rock Hill / York County | Piedmont / Olde English District | May | https://rockhillbicycleclub.com/ | Tags: Road, Rolling, Piedmont, Farmland, 100K, 100M | Rolling century through the tranquil farm roads, rivers, and historic battlefield country of York and Chester counties.
- Gran Fondo Hincapie Greenville | Travelers Rest / Greenville | Upstate / Blue Ridge Foothills | October | https://hincapie.com/pages/gran-fondo-hincapie/ | Tags: Alpine, Gran Fondo, Climbs, Mountains, Steep, 100K, 100M | Premier gran fondo tackling iconic climbs including Skyuka Mountain and Green River Cove in the Blue Ridge foothills.
- Midlands Fall Century (Lake Murray Classic) | Lexington / Columbia | Central / Lake Murray & Midlands | October | https://midlandscycling.org/ | Tags: Road, Rolling, Lakes, Autumn, 100K, 100M | Scenic autumn loop winding past the shorelines of Lake Murray and quiet country roads across the Midlands.
- Mountains to Main Street | Greenville / Travelers Rest | Upstate / Blue Ridge Foothills | April | https://mountainstomainstreet.com/ | Tags: Road, Foothills, Rolling, Climbs, Horse Country, 100K, 100M | Rollers and climbs traversing upstate South Carolina's horse farms, mountain watersheds, and scenic valleys.
- Savannah River Valley Century | North Augusta / Edgefield | Central / Savannah River Valley | September | https://augustabikeclub.org/ | Tags: Road, Rolling, River, Farmland, Historic, 100K, 100M | Late-summer classic touring peach orchards, rolling pine forests, and quiet rural backroads of Edgefield County.
- Tour de Lowcountry Century | Bluffton / Hilton Head | Southern / Lowcountry & Sea Islands | March | https://lowcountrybiketour.com/ | Tags: Road, Flat, Fast, Coastal, Marshes, 100K, 100M | Early-season flat century winding through maritime forests, tidal saltwater marshes, and Lowcountry communities.
- Tour de Plantersville & Cultural Tour | Georgetown / Plantersville | Coastal / Lowcountry & Waccamaw | October | https://tourdeplantersville.com/ | Tags: Road, Flat, Scenic Byway, Historic, Lowcountry, 100K | Scenic ride along South Carolina's only designated scenic byway past historic antebellum churches, rivers, and plantations.

[SD] South Dakota (US)
- Badlands Century Classic | Wall / Interior | Southwest / Badlands National Park | September | https://badlandscycling.org/ | Tags: Road, Badlands, Scenic Loop, Prairie, Buttes, 100K, 100M | Scenic route riding past dramatic eroded spires, layered buttes, and wide-open prairie in Badlands National Park.
- Black Hills Gran Fondo | Rapid City | Western / Black Hills | June | https://blackhillsgranfondo.com/ | Tags: Road, Ponderosa Pines, Gran Fondo, Climbs, Mountains, 100K, 100M | Rugged climbs skirting Mount Rushmore, granite spires, and ponderosa pine forests across the Black Hills.
- Custer State Park & Needles Century Challenge | Custer / Hill City | Western / Southern Black Hills | July | https://blackhillscyclingclub.org/ | Tags: Alpine, Climbs, Wildlife, Needles Highway, Steep, 100K, 100M | High-elevation climbing loop through Custer State Park, granite tunnels, and the dramatic Needles Highway.
- Glacial Lakes Century | Watertown | Northeast / Glacial Lakes & Prairies | September | https://watertownbiketour.com/ | Tags: Road, Rolling, Lakes, Prairie, Autumn, 100K, 100M | Autumn century winding past glacial lakes, prairie potholes, and tranquil rural farm roads in northeast South Dakota.
- Gold Rush Gravel Grinder | Spearfish | Northwest / Northern Black Hills | June | https://goldrushgravelgrinder.com/ | Tags: Gravel, Alpine, Canyons, Forest, Ultra, 100M, 110M | Challenging gravel century navigating deep canyons, historic logging roads, and high plateaus of the Black Hills.
- Lewis & Clark Century (Yankton Classic) | Yankton | Southeast / Missouri River Valley | August | https://yanktoncycling.org/ | Tags: Road, River, Bluffs, Rolling, Lakes, 100K, 100M | Scenic century along the chalkstone bluffs, state recreation areas, and shorelines of Lewis and Clark Lake.
- Mickelson Trail Century Trek | Deadwood to Edgemont | Western / Black Hills Corridor | September | https://gfp.sd.gov/mickelson-trail/ | Tags: Trail, Crushed Stone, Rail-Trail, Bridges, Tunnels, 100M | Premier 109-mile crushed-limestone rail-trail traversing historic mining towns, railroad trestles, and mountain meadows.
- RASDak (Ride Across South Dakota) | Cross-State (Rotating Route) | Statewide / Cross-State | June | https://rasdak.com/ | Tags: Tour, Multi-Day, Prairie, Hills, Scenic, 100K, 100M | Annual weeklong cross-state bicycle tour traversing scenic prairie highways, badlands, and rural communities.
- Sioux Falls River Greenway Century | Sioux Falls | Southeast / Big Sioux River Valley | July | https://fallsareabicyclists.org/ | Tags: Road, Trail, River, Rolling, Farmland, 100K, 100M | Combines the paved Big Sioux River Loop with rolling country blacktop through southeast South Dakota farmland.
- Spearfish Canyon Century | Spearfish / Deadwood | Northwest / Spearfish Canyon | August | https://spearfishbicycle.org/ | Tags: Road, Scenic Byway, Canyons, Waterfalls, Climbs, 100K, 100M | Spectacular ride through the limestone palisades, waterfalls, and pine canopies of the Spearfish Canyon Scenic Byway.

[TN] Tennessee (US)
- 3 State 3 Mountain Challenge | Chattanooga | Southeast / Tennessee River Valley | May | https://chattanoogabicycleclub.com/ | Tags: Alpine, Climbs, Mountains, Multi-State, Steep, 100M | Conquers three iconic mountain ascents across Tennessee, Alabama, and Georgia around the Tennessee River Gorge.
- Cherohala Challenge | Tellico Plains | East / Cherokee National Forest | August | https://smwbikeclub.org/cherohala-challenge/ | Tags: Alpine, Climbs, Mountain Passes, Skyway, Steep, 100M | Legendary high-elevation mountain century climbing the Cherohala Skyway and Joyce Kilmer forest ridges.
- Chickasaw Trace Classic | Columbia | Central / Maury County | September | https://columbiabikes.org/ | Tags: Road, Rolling, River, Farmland, Historic, 100K, 100M | Tours the rolling hills, antebellum estates, and Duck River countryside of historic Maury County.
- Harpeth River Ride | Franklin | Central / Williamson County | June | https://harpethbikeclub.com/ | Tags: Road, Horse Country, Rolling, River Valleys, 100K, 100M | Rolling century along Williamson County hollows, horse farms, and scenic river valleys.
- Highland Rim Century | Tullahoma | South Central / Highland Rim & Cumberland Plateau | July | https://highlandrimbicycleclub.com/ | Tags: Road, Rolling, Lakes, Waterfalls, 100K, 100M | Summer classic exploring the quiet backroads, lakes, and rolling plateau country of southern Middle Tennessee.
- Memphis Cottonmouth Century | Memphis / Collierville | West / Shelby & Fayette Counties | September | https://memphiscycling.com/ | Tags: Road, Flat, Rolling, Farmland, Delta, 100K, 100M | Fast-paced late-summer century through quiet rural farmland, river bottoms, and rolling western Tennessee blacktop.
- Natchez Trace Century (Tennessee Terminus) | Leiper's Fork to Collinwood | Central / Middle Tennessee | May | https://harpethbikeclub.com/ | Tags: Parkway, Smooth, Rolling, Historic, Nature, 100M | Continuous car-free feel following the northernmost reaches and double-arch bridge of the Natchez Trace Parkway.
- Ride for Raptors Century | Kingsport / Fall Branch | Northeast / Tri-Cities | September | https://kingsportcycling.com/ | Tags: Road, Rolling, Hilly, Mountains, Farmland, 100K, 100M | Scenic late-summer century through rolling Appalachian foothills, farmland, and river bottoms.
- Tour de Big South Fork | Oneida / Jamestown | North Central / Cumberland Plateau | October | https://bigsouthforkcycling.com/ | Tags: Road, Rolling, Canyons, Autumn, Foliage, 100K, 100M | Spectacular autumn ride tracing deep river gorges, sandstone arches, and peak fall foliage across the plateau.
- Tour de Rocky Top | Knoxville | East / Great Smoky Mountains Foothills | August | https://tourderockytop.com/ | Tags: Road, Rolling, Hilly, Smoky Mountains, 100K, 100M | Scenic ride taking in sweeping views of the Great Smoky Mountains through rural Knox and Blount counties.

[TX] Texas (US)
- Ark-La-Tex Challenge | Texarkana | Northeast / Ark-La-Tex Region | April | https://arklatexchallenge.com/ | Tags: Road, 3 States, Rolling, Piney Woods, 100K, 100M | Unique multi-state ride traversing scenic rolling pine country across Texas, Arkansas, and Louisiana.
- Armadillo Classic | Austin / Manor | Central / Texas Hill Country & Blackland Prairie | October | https://armadillobikeclassic.com/ | Tags: Road, Rolling, Farmland, Autumn, 100K, 100M | Austin fall tradition exploring rolling farm country, winding creeks, and historic rural roads east of the city.
- BP MS 150 (Houston to College Station) | Houston to College Station | Southeast / Gulf Coast to Brazos Valley | April | https://events.nationalmssociety.org/ | Tags: Road, Rolling, Charity, Multi-Day, Iconic, 100M, 150M | The largest fundraising cycling event in North America, traversing rolling countryside and historic Texas towns.
- Castell Grind / Gravel Century | Castell / Llano | Central / Llano Uplift & Hill Country | April | https://castellgrind.com/ | Tags: Gravel, Granite, River Crossings, Rugged, 100K, 100M | Premier Texas gravel endurance challenge winding through remote ranch roads, granite gravel, and the Llano River valley.
- Hotter'N Hell Hundred | Wichita Falls | North Texas Plains / Red River Valley | August | https://hh100.org/ | Tags: Road, 100F Heat, Largest in US, Flat, Endurance, 100K, 100M | The biggest sanctioned century in the world; draws 10,000+ riders tackling endurance miles in scorching summer heat.
- Ride for Heroes | Aledo / Parker County | North Texas / Cross Timbers | April | https://rideforheroes.org/ | Tags: Road, Rolling, Farmland, Charity, 100K, 100M | Challenging early-season century climbing through the rolling ranchlands and ridges of Parker County.
- Texas Hell Week / Hill Country Centuries | Fredericksburg | Central / Texas Hill Country | March | https://texashellweek.com/ | Tags: Road, Hilly, Steep, Limestone, Climbs, 100K, 100M | Series of grueling daily centuries navigating steep limestone climbs, river crossings, and wildflower corridors.
- Tour das Hugel | Austin | Central / Texas Hill Country | November | https://tourdashugel.wordpress.com/ | Tags: Road, Steep, Extreme Climbs, Urban Hilly, 100M, 110M | Notorious unsanctioned climbing century tackling over 10,000 vertical feet across Austin's steepest residential grades.
- Tour de Houston | Houston | Gulf Coast / Metro Houston | March | https://www.houstontx.gov/tourdehouston/ | Tags: Road, Urban, Coastal Flat, Historic, Charity, 100K, 100M | Spring mayor's ride offering closed-street and citywide routes exploring historic Houston neighborhoods and bayous.
- Wild West Century / Possum Trot | San Angelo | West / Concho Valley | September | https://sanangelocycling.org/ | Tags: Road, Rolling, High Plains, Desert, 100K, 100M | Late-summer century cruising across open west Texas plains, historic forts, and rugged ranch country.

[UT] Utah (US)
- Bear Lake Monster Century | Garden City / Bear Lake | Northern / Bear Lake Basin | August | https://bearlakecentury.com/ | Tags: Road, Lake Loop, Rolling, Turquoise Water, 100K, 100M | Circumnavigates the stunning turquoise waters of Bear Lake across the Utah and Idaho state border.
- Cache Gran Fondo | Logan | Northern / Cache Valley | July | https://cachegranfondo.com/ | Tags: Road, Valley, Gran Fondo, Agricultural, Mountains, 100K, 100M | High mountain valley century crossing northern Utah and southern Idaho against the dramatic Bear River Range.
- Cedar City Crusher / Belgian Waffle Ride Utah | Cedar City | Southwest / Iron County | September | https://belgianwaffleride.bike/ | Tags: Gravel, Road, High Desert, Canyons, Ultra, 100M, 130M | Grueling multi-surface endurance monument navigating high-desert gravel, jagged red rocks, and alpine ascents.
- Little Red Riding Hood | Lewiston / Cache Valley | Northern / Cache Valley | June | https://lrrhbikeride.com/ | Tags: Road, Rolling, Farmland, Women-Only, 100K, 100M | Massive, long-running non-competitive women's century looping through the quiet rural roads of northern Cache Valley.
- Moab Century Tour (Skinny Tire Festival) | Moab | Eastern / Red Rock & Canyonlands | September | https://skinnytireevents.com/ | Tags: Road, Red Rocks, Canyons, National Parks, River, 100K, 100M | Spectacular road century riding along the Colorado River corridor and the towering sandstone cliffs near Arches.
- Salt Lake City Century / UABC Century | Salt Lake City | Central / Wasatch Front | May | https://uabcinc.org/ | Tags: Road, Flat, Rolling, Great Salt Lake, 100K, 100M | Spring century exploring the shores of the Great Salt Lake, Wasatch mountain foothills, and Jordan River corridor.
- San Rafael Swell Gravel Century | Green River / Castle Dale | Central / San Rafael Swell | October | https://sanrafaelcycling.org/ | Tags: Gravel, Desert, Remote, Canyons, Buttes, 100M | Remote high-desert gravel challenge tracing massive sandstone reefs, slot canyon overlooks, and rugged backcountry.
- Spring Tour de St. George | St. George | Southern / Red Rock Country | April | https://ridefrostpoppin.com/ | Tags: Road, Red Rocks, Canyons, Rolling, 100K, 100M | Early-season tour winding through dramatic red sandstone cliffs, Sand Hollow reservoir, and Snow Canyon vistas.
- Tour de Park City | Park City | Northern / Wasatch Back & Uintas | August | https://tourdeparkcity.com/ | Tags: Alpine, Climbs, High Altitude, Mountain Passes, 100M, 160M | Demanding alpine endurance century climbing through the Wasatch Mountains and high alpine meadows of the Uintas.
- Ultimate Challenge / Tour of Utah Gran Fondo | Park City / Snowbird | Central / Wasatch Mountains | August | https://tourofutah.com/ | Tags: Alpine, Steep, Extreme Climbs, Mountain Passes, 100M | Epic climbing challenge tackling the brutal alpine ascents and switchbacks of Guardsman Pass and Little Cottonwood Canyon.

[VT] Vermont (US)
- Champlain Islands Century Loop | South Hero / Grand Isle | Northwest / Lake Champlain Islands | September | https://champlainislandsbiketour.com/ | Tags: Road, Flat, Lake Views, Causeways, Orchards, 100K, 100M | Flat and rolling coastal-style century traversing the island causeways, apple orchards, and lake shorelines of Lake Champlain.
- Green Mountain Century | Colchester / Burlington | Northwest / Lake Champlain & Green Mountains | August | https://greenmountainbicycleclub.org/ | Tags: Road, Rolling, Lakes, Covered Bridges, 100K, 100M | Scenic classic looping through Lake Champlain island causeways, historic covered bridges, and mountain foothills.
- Kanc / Killington Century (Tour de Valley) | Killington / Rutland | Central / Killington Peak & Ottauquechee | July | https://killingtoncycling.org/ | Tags: Alpine, Climbs, Mountain Passes, River Valleys, 100M | Challenging high-elevation mountain century crossing Sherburne Pass and winding along the Ottauquechee River valley.
- Mad River Valley Century | Waitsfield / Warren | Central / Mad River Valley | August | https://madriverriders.org/ | Tags: Road, Rolling, River Valleys, Covered Bridges, 100K, 100M | Scenic tour through picturesque farm meadows, historic covered bridges, and swimming holes along the Mad River.
- Northeast Kingdom Fall Foliage Century | St. Johnsbury / Lyndonville | Northeast / Northeast Kingdom | September | https://nekbiketour.com/ | Tags: Road, Rolling, Hilly, Autumn, Foliage, 100K, 100M | Spectacular late-season century showcasing world-famous peak autumn foliage and rural gravel-and-paved country lanes.
- Rasputitsa Gravel Century | Burke / East Burke | Northeast / Northeast Kingdom | April | https://rasputitsagravel.com/ | Tags: Gravel, Dirt, Spring, Mud, Mountain Passes, 100K, 100M | Rugged early-season gravel test through Vermont's Northeast Kingdom tackling steep dirt climbs and unpredictable spring terrain.
- Southern Vermont Covered Bridge Century | Bennington / Manchester | Southwest / Battenkill Valley | May | https://southernvermontcycling.org/ | Tags: Road, Covered Bridges, Historic, Rolling, 100K, 100M | Spring classic visiting historic red covered bridges, the Battenkill River, and marble-quarry villages of Bennington County.
- The Irreverent Road Ride (IRR) | Waterbury | Central / Green Mountains | June | https://irreverentroadride.com/ | Tags: Gravel, Unpaved, Gap Roads, Mountain Passes, 100K, 100M | Mixed-surface century over Vermont's famous dirt gap roads, notch climbs, and scenic backwoods.
- The Overland (Vermont Overland) | West Windsor / Ascutney | East Central / Windsor County | August | https://www.vermontoverland.com/ | Tags: Gravel, Class 4, Dirt, Forest, Steep, 100K | Cult-classic mixed-terrain dirt road and unmaintained Class 4 ancient road challenge through the hills of Woodstock and Ascutney.
- Vermont Gran Fondo (VTGF) | Bristol / Middlebury | Central / Green Mountain Passes | June | https://vermontgranfondo.com/ | Tags: Alpine, Steep, Extreme Climbs, Gap Roads, Gran Fondo, 100K, 100M | Notorious alpine climbing challenge conquering the legendary gap roads: Lincoln Gap, Appalachian Gap, Roxbury, and Middlebury.

[VA] Virginia (US)
- Alpine Loop Gran Fondo | Harrisonburg | Northwest / Shenandoah Valley & Allegheny Mountains | September | https://alpineloopgranfondo.com/ | Tags: Alpine, Gravel, Gran Fondo, Climbs, Dirt Gaps, 100K, 100M | Conceived by Jeremiah Bishop, featuring steep unpaved mountain passes and panoramic ridge climbs across the Alleghenies.
- Blue Ridge Extreme Century Challenge | Wintergreen / Nellysford | Central / Nelson County | June | https://blueridgecyclingclub.com/ | Tags: Alpine, Steep, Extreme Climbs, Mountain Passes, 100M | Brutal climbing century tackling over 10,000 vertical feet across Reed's Gap and Wintergreen mountain ascents.
- Cap2Cap (Virginia Capital Trail) | Richmond to Williamsburg | Central / James River Corridor | May | https://virginiacapitaltrail.org/cap2cap | Tags: Trail, Paved, Rail-Trail, Historic, Flat, 100K, 100M | Paved dedicated trail century linking Virginia's historic capitals along the scenic James River.
- Eastern Shore Metric & Century (Between the Waters) | Onancock / Cape Charles | Eastern / Delmarva Peninsula | October | https://cbes.org/between-the-waters-bike-tour/ | Tags: Road, Flat, Coastal, Ocean Views, Bay, 100K, 100M | Flat coastal century navigating tranquil farmland, seaside marshes, and waterfront harbors between Chesapeake Bay and the Atlantic.
- Shenandoah Valley Century | Harrisonburg | Northwest / Shenandoah Valley | September | https://svbcoalition.org/shenandoah-valley-century/ | Tags: Road, Rolling, Farmland, Historic, Mountains, 100K, 100M | Longstanding scenic classic touring quiet farm roads, limestone springs, and mountain foothills of the Shenandoah Valley.
- Skyline Drive Fall Foliage Century Loop | Front Royal to Luray | Northern / Shenandoah National Park | October | https://shenandoahbiketours.com/ | Tags: Alpine, National Park, Scenic Byway, Autumn, Foliage, 100M | Spectacular high-elevation autumn ride along Skyline Drive featuring sweeping valley overlooks and peak fall colors.
- Storming of Thunder Ridge | Lynchburg | Central / Blue Ridge Foothills | May | https://stormingofthunderridge.org/ | Tags: Alpine, Blue Ridge Pkwy, Climbs, Mountain Passes, Steep, 100M | Climbing to the Blue Ridge Parkway at the 3,900-foot Thunder Ridge Overlook with breathtaking mountain descents.
- Surry Century (Surry County Tour) | Surry / Williamsburg | Southeast / Tidewater & Coastal Plain | September | https://pba-ride.org/ | Tags: Road, Flat, Ferry, River, Farmland, 100K, 100M | Flat Tidewater favorite featuring scenic peanut farmland, historic river plantations, and the Jamestown-Scotland Ferry.
- Tour de Madison | Madison | Northern / Blue Ridge Foothills | May | https://tourdemadison.com/ | Tags: Road, Rolling, Hilly, Farmland, Vineyards, 100K, 100M | Scenic ride touring through the rolling foothills, apple orchards, and vineyards flanking Shenandoah National Park.
- Tour de Mount Vernon | Mount Vernon / Alexandria | Northern Virginia / Potomac River | October | https://tourdemountvernon.org/ | Tags: Road, Trail, River, Historic, Rolling, 100K | Explores historic parkways, George Washington's Mount Vernon estate, and paved Potomac riverfront pathways.

[WA] Washington (US)
- Apple Century (Wenatchee Classic) | Wenatchee | Central / Columbia River & Cascades | June | https://wenatcheebicycleclub.org/ | Tags: Road, Rolling, Canyons, Orchards, Columbia River, 100K, 100M | Traverses apple and cherry orchards along the Columbia and Wenatchee rivers with sunny eastern Cascade views.
- Bike MS: Deception Pass Classic | Anacortes / Mount Vernon | Puget Sound / Skagit & Island Counties | August | https://events.nationalmssociety.org/ | Tags: Road, Coastal, Bridges, Ocean Views, Charity, 100K, 100M | Coastal tour featuring dramatic spans across Deception Pass Bridge, scenic saltwater bays, and Skagit farmland.
- Chilly Hilly | Seattle / Bainbridge Island | Puget Sound / Bainbridge Island | February | https://cascade.org/rides-events/chilly-hilly | Tags: Road, Island, Rolling, Puget Sound, Ferry, 50K, 100K | Iconic early-season loop around Bainbridge Island featuring crisp Puget Sound views, punchy hills, and ferry transit.
- Flying Wheels Summer Century | Redmond / Snoqualmie Valley | Central / Eastside & Snoqualmie Valley | June | https://cascade.org/rides-events/flying-wheels-summer-century | Tags: Road, Rolling, Hilly, Cascade Foothills, Farmland, 100K, 100M | Puget Sound's largest standalone century touring lush river valleys, rural blacktop, and Cascade foothill rollers.
- McClinchy Mile / Oso Strong Ride | Arlington | North Puget Sound / Snohomish County | March | https://bikesnoco.org/ | Tags: Road, Cascade Foothills, Rolling, Farmland, 100K, 100M | Spring tradition traversing the scenic Stillaguamish River valley, dairy pastures, and Cascade mountain foothills.
- Passport to Pain (P2P) | Vashon Island | Puget Sound / Vashon Island | September | https://vashonbiketour.org/ | Tags: Road, Steep, Extreme Climbs, Island, Ultra, 100M | Notorious island century conquering up to 10,000 vertical feet across every steep hill and cove on Vashon Island.
- RAMROD (Ride Around Mount Rainier in One Day) | Enumclaw | Central / Mount Rainier National Park | July | https://redmondcyclingclub.org/ramrod/ | Tags: Alpine, 150 Miles, 10000 Gain, Volcano, Mountain Passes, Ultra | Circling Mount Rainier National Park over Cayuse Pass and Backbone Ridge with over 10,000 feet of climbing.
- Ride the Hurricane | Port Angeles | Olympic Peninsula / Hurricane Ridge | August | https://portangeles.org/pages/ridethehurricane | Tags: Alpine, National Park, Steep, Climbs, Ocean Views, 100K, 100M | Car-free climb up Hurricane Ridge in Olympic National Park, ascending over 5,000 feet from sea level to alpine peaks.
- STP (Seattle to Portland Bicycle Classic) | Seattle to Portland | Western / Puget Sound to Columbia River | July | https://cascade.org/rides-events/seattle-portland-stp | Tags: Signature, 206 Miles, Multi-Day, Iconic, Flat, Rolling, Ultra | The Pacific Northwest's premier endurance ride drawing 10,000 cyclists across 206 scenic miles in one or two days.
- Tour de Dungess / Sequim Century | Sequim / Dungeness | Olympic Peninsula / Rain Shadow | April | https://sequimbicycleclub.org/ | Tags: Road, Flat, Rolling, Olympic Mountains, Coastal, 100K, 100M | Early-season century tracing lavender fields, the Dungeness River, and the Olympic Rain Shadow shoreline.

[WV] West Virginia (US)
- Appalachian Autumn Century | Morgantown / Cheat Lake | Northern / Monongalia & Preston Counties | October | https://morgantowncycling.org/ | Tags: Road, Hilly, Autumn, Foliage, River, 100K, 100M | Spectacular autumn ride taking in peak fall colors, Cheat River canyon bluffs, and rolling Appalachian farmland.
- Blackwater Falls / Canaan Valley Century | Davis / Thomas | Highlands / Canaan Valley | July | https://tuckercountycycling.com/ | Tags: Alpine, High Altitude, Waterfalls, Forest, 100K, 100M | High-elevation tour across the Canaan Valley wetland plateau, Blackwater Canyon rim, and historic mountain towns.
- Cranberry Century / Pocahontas Classic | Hillsboro / Marlinton | Allegheny Highlands / Pocahontas County | June | https://cranberrycycling.org/ | Tags: Road, Rolling, Alpine, Forest, Glades, 100K, 100M | Scenic ride exploring the Cranberry Glades botanical area, highland headwaters, and pastoral mountain valleys.
- Greenbrier River Trail Century Challenge | Caldwell to Cass | Southeast / Greenbrier Valley | Any season | https://greenbrierrivertrail.com/ | Tags: Trail, Crushed Stone, Rail-Trail, River, Bridges, 100M | 78-mile continuous non-motorized rail-trail following the wild and scenic Greenbrier River through tunnels and gorges.
- Highland Scenic Highway Century | Marlinton / Richwood | Allegheny Highlands / Pocahontas County | July | https://pocahontascountybikes.org/ | Tags: Alpine, Monongahela NF, Parkway, Mountain Passes, Steep, 100M | Parkway century rising to 4,500+ foot ridges along the Allegheny Highlands with dramatic panoramic overlooks.
- Kanawha River Valley Century | Charleston | Central / Kanawha Valley | June | https://charlestonbiketour.com/ | Tags: Road, Rolling, River, Historic, 100K, 100M | Scenic ride following the Kanawha River corridor, historic capitol grounds, and wooded foothill hollows.
- Mountain State Century | Elkins / Davis | Highlands / Randolph & Tucker Counties | August | https://mountainstatecentury.com/ | Tags: Alpine, Climbs, River Valleys, Mountains, 100K, 100M | Demanding mountain century through lush highland valleys, scenic river gorges, and Monongahela National Forest.
- New River Gorge Century (Babcock to Gorge) | Fayetteville / Oak Hill | New River / Fayette County | September | https://newrivercycling.org/ | Tags: Alpine, Gorge, Climbs, National Park, Scenic, 100K, 100M | Challenging ride navigating the steep canyon rims, historic coal towns, and views around New River Gorge National Park.
- Potomac Highlands Century | Petersburg / Moorefield | Eastern Panhandle / South Branch Valley | May | https://potomachighlandscycling.com/ | Tags: Road, Rolling, River Valley, Mountains, 100K, 100M | Spring classic along the South Branch Potomac River, winding past Smoke Hole Canyon and sheer limestone cliffs.
- Spruce Knob Alpine Challenge | Circleville / Franklin | Eastern Panhandle / Pendleton County | September | https://spruceknobendurance.com/ | Tags: Alpine, Steep, Extreme Climbs, Mountain Passes, High Altitude, 100M | Brutal mountain century ascending toward Spruce Knob, the highest point in West Virginia, across remote ridges.

[WI] Wisconsin (US)
- Bayfield Peninsula Century Loop | Bayfield / Washburn | Northwest / Lake Superior & Apostle Islands | August | https://bayfieldcycling.org/ | Tags: Road, Coastal, Lake Superior, Orchards, Rolling, 100K, 100M | Scenic coastal loop skirting the Apostle Islands National Lakeshore, apple orchards, and rugged Superior ridgelines.
- Dairyland Dare | Dodgeville | Southwest / Iowa County & Driftless | August | https://dairylanddare.com/ | Tags: Road, Steep, Extreme Climbs, Driftless, Ultra, 100M, 200M | Epic climbing challenge offering grueling multi-loop century and double-century courses over relentless ridge climbs.
- Door County Century | Sturgeon Bay | Northeast / Door County Peninsula | September | https://doorcountycentury.com/ | Tags: Road, Coastal, Lake Michigan, Rolling, Orchards, 100K, 100M | Premier Midwest classic touring limestone bluffs, shoreline bays, cherry orchards, and historic lighthouses.
- GRABAAWR (Great Red Cedar Bank Adventure And Water Ride) | Eagle River to Prairie du Chien | Statewide / Northwoods to Driftless | June | https://bikewisconsin.org/grabaawr/ | Tags: Tour, Multi-Day, Rivers, Rolling, Scenic, 100M | Classic multi-day cross-state tour tracing scenic river valleys and rolling dairy countryside south to the Mississippi.
- Horribly Hilly Hundreds | Blue Mounds | Southwest / Driftless Region | June | https://horriblyhilly.com/ | Tags: Road, 10000 Gain, Driftless, Steep, Extreme Climbs, 100K, 100M, Ultra | Toughest one-day challenge in the Midwest, tackling steep Driftless ridges, coulees, and Blue Mounds State Park.
- Kettle Moraine Fall Foliage Century | Whitewater / Eagle | Southeast / Kettle Moraine State Forest | October | https://kettlemorainecycling.org/ | Tags: Road, Rolling, Glacial Hills, Forest, Autumn, 100K, 100M | Challenging route featuring steep glacial hills, kettles, and moraines dressed in vibrant fall foliage.
- Northwoods Fall Ride / Century | Tomahawk / Minocqua | North / Northwoods Lake Country | September | https://northwoodscycling.org/ | Tags: Road, Lakes, Pine Forests, Autumn, Foliage, 100K, 100M | Scenic late-season ride winding past quiet glacial lakes, pine woodlands, and peak autumn Northwoods colors.
- Sugar River & Military Ridge Century Trail Loop | New Glarus to Mount Horeb | South / Green & Dane Counties | Any season | https://dnr.wisconsin.gov/topic/parks/sugarriver | Tags: Trail, Crushed Stone, Rail-Trail, Rolling, Farmland, 100K, 100M | Combines the scenic Sugar River and Badger State rail-trails with quiet paved backroads through Swiss heritage country.
- Tyranena Beer Run / Gran Fondo Century | Lake Mills | South Central / Jefferson County | October | https://tyranenabeerrun.com/ | Tags: Road, Rolling, Glacial Hills, Brewery, Autumn, 100K, 100M | Fall century looping through rolling glacial drumlins, Aztalan State Park, and scenic farmlands.
- Wright Stuff Century | Spring Green | Southwest / River Valley & Driftless | September | https://wrightstuffcentury.com/ | Tags: Road, Rolling, Driftless, Frank Lloyd Wright, Architecture, 100K, 100M | Scenic tour winding past Frank Lloyd Wright's Taliesin, the Wisconsin River, and dramatic Driftless coulees.

[WY] Wyoming (US)
- Beartooth Highway Century Challenge | Cody to Beartooth Pass | Northwest / Absaroka Range | July | https://codycycling.org/ | Tags: Alpine, Extreme Climbs, Mountain Passes, Glaciers, 100M | Ascends one of America's most rugged high-altitude highways, climbing past alpine plateaus to nearly 11,000 feet.
- Bighorn Mountain Gran Fondo | Sheridan / Buffalo | Northern / Bighorn Mountains | August | https://bighorngranfondo.com/ | Tags: Alpine, Gran Fondo, Climbs, Canyons, 100K, 100M | Demanding alpine climbing challenge tackling steep switchbacks and deep canyon ascents into the Bighorns.
- Casper Mountain Hillclimb & Century | Casper | Central / Casper Mountain & Platte River | August | https://caspercyclingclub.org/ | Tags: Road, Rolling, Mountain Climbs, River Valley, 100K, 100M | Combines rolling routes along the North Platte River with a challenging climb overlooking the high plains.
- Flaming Gorge Century Loop | Green River to Manila | Southwest / Flaming Gorge Country | September | https://flaminggorgebiketour.com/ | Tags: Road, Canyon, Lake Views, Red Rocks, Rolling, 100K, 100M | Scenic ride tracing the dramatic red canyon rims, turquoise waters, and high-desert vistas of Flaming Gorge.
- Jackson Hole & Teton Century | Jackson / Moose | Northwest / Jackson Hole & Tetons | September | https://tetonbike.org/ | Tags: Road, Mountains, Teton Views, Flat, Rolling, 100K, 100M | Scenic ride framed by the jagged peaks of the Grand Teton Range and the Upper Snake River Valley.
- Laramie Range Century | Laramie | Southeast / Laramie Range & Snowy Range | August | https://laramiecyclingclub.org/ | Tags: Alpine, High Altitude, Mountain Passes, Plains, 100K, 100M | Challenging high-plains and mountain century climbing through the granite peaks and foothills of the Laramie Range.
- Snowy Range Scenic Byway Century | Centennial to Saratoga | Southeast / Medicine Bow National Forest | July | https://snowyrangecycling.com/ | Tags: Alpine, Steep, Snowy Range, High Passes, 100M | Spectacular high-altitude ride conquering 10,847-foot Snowy Range Pass amid glacial lakes and alpine tundra.
- Tour de Rim / Red Desert Gravel Century | Rock Springs / Green River | Southwest / Red Desert Basin | June | https://reddesertgravel.com/ | Tags: Gravel, Desert, Remote, High Plains, Buttes, 100M | Remote gravel century traversing wild horse country, sandstone bluffs, and expansive high-desert expanses.
- Tour de Wyoming Century | Rotating Route | Statewide / Rocky Mountains | July | https://tourdewyoming.org/ | Tags: Alpine, High Passes, Mountains, Multi-Day, 100M | Remote alpine routes showcasing the Wind River or Bighorn mountain ranges and dramatic high-elevation passes.
- Wind River Country Century | Lander / Dubois | Central / Wind River Range | June | https://windrivercycling.org/ | Tags: Road, Rolling, Canyons, High Plains, Mountains, 100K, 100M | Scenic route exploring the dramatic red-rock canyons and mountain-framed ranchlands of the Wind River Basin.