Curated races, clubs, and training

MarathonThe full 26.2 Half Marathon13.1 miles of fun 5KShort and fast 10KThe classic distance TrailGet off the pavement RoadPavement classics Ultra50K, 100K, and beyond FlatFast, PR-friendly courses DownhillNet elevation drop RelayRun as a team VirtualRun anywhere, anytime CoastalRun along the shoreline MountainHigh-altitude challenges

5KShort and fast 10KThe classic distance Half Marathon13.1 miles of fun MarathonThe full 26.2 50KYour first ultra 50 MileThe long haul 100KUltimate endurance 100 MileThe ultimate challenge

All trail racesGet off the pavement Mountain TrailsAlpine singletrack Coastal TrailsOcean views on foot Hilly TrailsRolling terrain off-road Flat TrailsSmooth and fast off-road Trail Ultras50K+ off-road Trail 50KFirst ultra on dirt Trail Marathon26.2 off-road Trail Half13.1 off-road

All road racesPavement classics Road MarathonClassic 26.2 on pavement Road Half13.1 on the roads Road 10K6.2 miles on pavement Road 5KFast 3.1 on the roads Flat RoadPR-friendly road courses Downhill RoadNet downhill road courses City RoadUrban road events

United StatesRaces across America Boston, MAHistoric running city New York, NYThe five boroughs Chicago, ILFlat and fast Los Angeles, CAWest coast running San Francisco, CAHills and views Denver, COMile high racing Portland, ORPacific Northwest Seattle, WAEmerald city runs Austin, TXTexas running scene Nashville, TNMusic city miles San Diego, CAYear-round sunshine Miami, FLTropical running Honolulu, HIIsland paradise runs Washington, DCMonument runs Salt Lake City, UTMountain valley racing Boulder, CORunner's paradise Bend, ORTrail town USA Asheville, NCBlue Ridge running Duluth, MNNorth Shore trails Charleston, SCSouthern charm runs Savannah, GALive oak lined routes Santa Fe, NMHigh desert art town Key West, FLSouthernmost runs Maui, HIVolcanic island trails Napa Valley, CAWine country running

FlatFast, PR-friendly courses RollingGentle hills throughout HillySignificant climbs MountainousMajor elevation challenges DownhillNet elevation drop CoastalRun along the shoreline MountainHigh-altitude challenges ValleyBetween the peaks IslandSurrounded by water CanyonDeep and dramatic DesertArid and exposed

OceanRun along the ocean LakePeaceful lake views RiverFollow the water BayHarbor and bay views WildernessDeep backcountry RuralQuiet country roads CityUrban energy LoopStart and finish together Point to PointA to B adventures Out & BackThere and back again

Turkey TrotThanksgiving weekend runs New Year'sStart the year running July 4thIndependence Day runs Valentine'sRun with your sweetheart St. Patrick'sLucky runs in green HalloweenSpooky season runs Memorial DayHonor and run ChristmasHoliday season runs Labor DayEnd-of-summer runs Mother's DayRun for mom Father's DayRun for dad Cinco de MayoFiesta runs MLK DayDream runs

YosemiteSierra Nevada running Grand CanyonRim-to-rim adventures ZionRed canyon trails YellowstoneGeothermal wilderness Big SurCoastal California SedonaRed rock running MoabDesert ultra country Lake TahoeAlpine lake running AcadiaNortheast coastal trails GlacierCrown of the continent Death ValleyExtreme desert running Joshua TreeHigh desert trails Rocky MountainAlpine trail running OlympicRainforest to coast Bryce CanyonHoodoo trails Great Smoky MountainsAppalachian running LeadvilleRace across the sky Mount RainierVolcanic peak trails Pictured RocksGreat Lakes shoreline

RelayRun as a team VirtualRun anywhere, anytime WalkingWalk-friendly events TrackOn the oval GrassSoft underfoot SandBeach running MixedVariety of terrain LapsMultiple loops

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Colorado
Denver, CO

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Running races near Denver, CO

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Mile high racing · 136 races

24 races found

Ram Run

Rebel Run 5k

3.1 Miles5k Virtual Race

Pioneer Prairie Dog Half, 10k & 5k

Westminster, CO

13.1 Miles10K5K

Sloth Run 5K/10K/13.1 DENVER/AURORA

5K10K13.1 Miles+1

Run for Breast Cancer 5K/10K/13.1 DENVER/AURORA

5K10K13.1 Miles+1

Glow & Roll: Illuminate What's Possible

5K1.6 MilesVirtual Participant

Demon Dash

Golden Harvest Half Marathon & 5k/10k - Denver

3.1 Miles6.2 Miles13.1 Miles+4

Raising the Barr

12 hour - Solo12 hour - Relay ULTRA (2-3 people)12 Hour - Relay STANDARD (4-8 people)+3

Labor Day Half Marathon

13.1 Miles10K5K

The Denver 5k

6 Dot Dash

National Chocolate Day: Run for Chocolates 5K/10K/13.1 DENVER/AURORA

5K10K13.1 Miles+1

Run for Mental Health 5K/10K/13.1 DENVER/AURORA

5K10K13.1 Miles+1

Buffalo Bicycle Classic

35 Miles50 Miles70 Miles+5

9/11 Heroes Run - Denver, Colorado

5K1 MilesVolunteer

RMRR September Trophy Series

Tiger Prowl 5K

3.1 MilesTiger Prowl 5K Chill Option

Miles 4 Madison 5K & 1K

3.1 Miles0.62 Miles

All-Out Fall Fest

Westminster, CO

13.1 Miles10K5K

Denver: Walk With Autism and Resource Fair

6K5KWalk with Autism Denver - Ages 12 and Up (walk or 5K option)

Farmers 5000

Wheat Ridge, CO

5KBetty's Runners - runners age 70 and up. T-shirt included in registration.Middle School Student (grades 6-8) 5K registration. T-shirt included in registration+1

20th Annual Golden Gallop

3.1 Miles6.2 MilesKids Fun Run - Kids 10 and under only+2

NIGHT NATION RUN - DENVER

Commerce City, CO

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