Races in Colorado

Upcoming races in Colorado. Use filters to quickly find races by distance, city, month or race type.

More races: USA running calendar

Date RaceDistanceCityhf:tax:distancecategoryhf:tax:cityhf:tax:typeracehf:tax:monthandyear
12/14/2024WinterFest 5K5KDenver CO5kdenver-coroadrace12-december
12/14/2024Santa Catch 5K & 10K10K, 5KWindsor CO10k 5kwindsor-coroadrace12-december
12/14/2024WinterFest 5K & Fun Run5KThornton CO5kthornton-coroadrace12-december
12/15/2024Ugly Sweater 5K5KDenver CO5kdenver-coroadrace12-december
12/21/2024Santa’s Dash for Cash1M, 5KDenver CO5kdenver-coroadrace12-december
12/21/2024Candy Cane Course – Colorado Springs12K, 5KColorado Springs CO10k-to-half-marathon 5kcolorado-springs-coroadrace12-december
12/22/2024Candy Cane Course – Denver12K, 5KWestminster CO10k-to-half-marathon 5kwestminster-coroadrace12-december
01/11/2025All-Out Polar Prowl Half Marathon10K, 13.1M, 5KArvada CO10k 5k halfarvada-coroadrace01-january
01/19/2025Arctic Prairie Dog Half Marathon10K, 13.1M, 5KWestminster CO10k 5k halfwestminster-coroadrace01-january
02/09/2025Super Half Marathon and Game Day 5K13.1M, 5KColorado Springs CO5k halfcolorado-springs-coroadrace02-february
02/15/2025Stories Ultra10K, 13.1M, 15H, 30H, 6HColorado Springs CO10k half ultracolorado-springs-cotrail02-february
02/16/2025Ralston Creek Half Marathon13.1M, 5KArvada CO5k halfarvada-coroadrace02-february
02/22/2025All-Out Mardi Crawl 5K, 10K and Half Marathon10K, 13.1M, 5KArvada CO10k 5k halfarvada-cotrail02-february
02/23/2025Highlands Ranch5KHighlands Ranch CO5khighlands-ranch-coroadrace02-february
03/02/2025That Dam Run10K, 13.1M, 5KDenver CO10k 5k halfdenver-coroadrace03-march
03/08/2025Run Through Time Trail Marathon13.1M, 26.2M, 2MSalida COhalf marathonsalida-cotrail03-march
03/23/2025Spring Equinox Half Marathon13.1M, 4MFort Collins COhalffort-collins-cotrail03-march
04/01/2025Steve’s Event Page5KMorrison CO5kmorrison-coroadrace04-april
04/11/2025Desert RATS Trail Running Festival100K, 10K, 13.1M, 50KFruita CO10k half ultrafruita-cotrail04-april
04/13/2025Platte River Half Marathon13.1MLittleton COhalflittleton-coroadrace04-april
04/13/2025Three Creeks Half Marathon13.1MDenver COhalfdenver-coroadrace04-april
04/13/2025The Spring Fling Prairie Dog Half10K, 13.1M, 5KArvada CO10k 5k halfarvada-coroadrace04-april
04/13/2025Horsetooth Half Marathon13.1MFort Collins COhalffort-collins-coroadrace04-april
04/26/2025Runs with Scissors Races13.1M, 26.2M, 50KBrighton COhalf marathon ultrabrighton-cotrail04-april
04/26/2025Royal Gorge Groove Trail Runs12K, 20K, 30K, 50K, 5KCaรฑon City CO10k-to-half-marathon 5k half half-marathon-to-full-marathon ultracanon-city-cotrail04-april
05/04/2025Longmont Half Marathon13.1M, 5KLongmont CO5k halflongmont-coroadrace05-may
05/04/2025Colorado Marathon10K, 13.1M, 26.2M, 5KFort Collins CO10k 5k half marathonfort-collins-coroadrace05-may
05/10/2025Valkyrie Trail Race13.1M, 26.2M, 30K, 4M, 50K, 8MColorado Springs CO10k-to-half-marathon half half-marathon-to-full-marathon marathon ultracolorado-springs-cotrail05-may
05/11/2025Fruita Trail Half13.1MFruita COhalffruita-cotrail05-may
05/17/2025Habitat Archuleta’s 15 Homes in 5K Fun Run5KPagosa Springs CO5kpagosa-springs-coroadrace05-may
05/17/2025Endure Trail Runs10K, 12H, 13.1M, 24HDivide CO10k half ultradivide-cotrail05-may
05/17/2025Canine On the Creek 5K1M, 5KDumont CO5kdumont-coroadrace05-may
05/17/2025Ram Party15K, 24K, 50K, 55M, 60KColorado Springs CO10k-to-half-marathon half marathon ultracolorado-springs-cotrail05-may
05/17/2025Denver Colfax Marathon10M, 13.1M, 26.2MDenver CO10k-to-half-marathon half marathondenver-coroadrace05-may
05/24/2025Weld Your Mettle Running Event12H, 24H, 3H, 6H, 9HEaton COultraeaton-coroadrace05-may
05/25/2025Spirit Trail Race13.1M, 26.2M, 9KBuena Vista COhalf marathonbuena-vista-cotrail05-may
06/01/2025Flamingo Day 5K5KDenver CO5kdenver-coroadrace06-june
06/01/2025Crazy Legs 10K Trail Run10KLoveland CO10kloveland-cotrail06-june
06/01/2025Steamboat Marathon10K, 13.1M, 26.2MSteamboat Springs CO10k half marathonsteamboat-springs-coroadrace06-june
06/01/2025Colorado 13er10K, 13.1M, 5KLouisville CO10k 5k halflouisville-coroadrace06-june
06/07/2025The Great Divide Ultra100K, 100M, 25K, 50KDivide COhalf-marathon-to-full-marathon ultradivide-cotrail06-june
06/15/2025Father’s Day Classic10K, 1M, 5KArvada CO10k 5karvada-coroadrace06-june
06/21/2025Unicorn 5K (North)5KThornton CO5kthornton-coroadrace06-june
07/04/2025ROCK-IT Run Half Marathon13.1M, 5KCastle Rock CO5k halfcastle-rock-coroadrace07-july
07/04/2025Let Freedom Run10K, 5KLouisville CO10k 5klouisville-coroadrace07-july
07/04/2025July 4th ROCK-IT Run13.1M, 1K, 5KCastle Rock CO5k halfcastle-rock-coroadrace07-july
07/11/2025Silverheels Trail Runs100K, 100M, 10M, 18M, 50M, 60KComo COhalf-marathon-to-full-marathon ultracomo-cotrail07-july
07/12/2025Cookie Chase 5K5KDenver CO5kdenver-coroadrace07-july
07/12/2025All-Out Dog Days Half Marathon10K, 13.1M, 5KWestminster CO10k 5k halfwestminster-coroadrace07-july
07/18/2025Ouray 100 Mile Endurance Run100MOuray COultraouray-cotrail07-july
07/19/2025Firecracker 4 & 8 Mile – Denver1M, 4M, 8MDenver CO10k-to-half-marathondenver-coroadrace07-july
07/19/2025Summer Splash Prairie Dog Half Marathon10K, 13.1M, 5KCastle Rock CO10k 5k halfcastle-rock-coroadrace07-july
07/20/2025Firecracker 4 & 8 Mile – Colorado Springs1M, 4M, 8MColorado Springs CO10k-to-half-marathon half-marathon-to-full-marathoncolorado-springs-coroadrace07-july
07/27/2025Spirit of the West 5K5KGolden CO5kgolden-coroadrace07-july
08/01/2025Annual Wild West Relay200MFort Collins COultrafort-collins-coroadrace08-august
08/04/2025TransRockies Run Charity Bibs120 MilesBuena Vista CO120mbuena-vista-cotrail08-august
08/16/2025Summer Sizzler- Denver10K, 15K, 5KWestminster CO10k 10k-to-half-marathon 5kwestminster-coroadrace08-august
08/17/2025Summer Sizzler- Colorado Springs10K, 15K, 1M, 5KColorado Springs CO10k 10k-to-half-marathon 5kcolorado-springs-coroadrace08-august

Colorado Race Calendars:

5K Races 10K Races
Half Marathons Marathons
Ultra Marathons Trail Races
Denver Colorado Springs
Aurora Fort Collins

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