Upcoming Races in Colorado
Event Category
Click Here to find out what Classic, Multisport, and Variety mean.
To narrow your search by a distance or event type, you will need to select Classic, Multisport, or Variety first.
To narrow your search by a distance or event type, you will need to select Classic, Multisport, or Variety first.
City Location
21. Runs With Scissors Races
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Apr 8, 2023Saturday
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50K, 26.2M, 13.1M run
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Brighton, CO
Adams County, CO
22. South Boulder Creek parkrun
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Apr 8, 2023Saturday
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5K run
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Boulder, CO
Boulder County, CO
23. StepUp For Women and Recovery
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Apr 13, 2023Thursday
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5K run
Virtual OptionMore Information
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Fort Collins, CO
Larimer County, CO
24. Desert RATS Trail Running Festival
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Apr 14, 2023Friday
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100K trail run
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Fruita, CO
Mesa County, CO
25. All-Out Beat the Heat
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Apr 15, 2023Saturday
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13.1M, 10K, 5K run
Virtual OptionMore Information
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Boston Marathon Qualifier
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Westminster, CO
Adams County, COJefferson County, CO
26. Aspen parkrun
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Apr 15, 2023Saturday
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5K run
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Aspen, CO
Pitkin County, CO
27. Boulder Rez Half
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Apr 15, 2023Saturday
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13.1M, 10K, 5K run
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Boulder, CO
Boulder County, CO
28. Colorado Brewery Running Series - Zuni Street Brewing
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Apr 15, 2023Saturday
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5K run
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Denver, CO
Denver County, CO
29. Denver Athletics All Comers Spring Track Series
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Apr 15, 2023Saturday
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track meet
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Englewood, CO
Arapahoe County, CO
30. Desert RATS Trail Running Festival
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Apr 15, 2023Saturday
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50K, 26.2M trail run
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Fruita, CO
Mesa County, CO
31. Healthy Kids Running Series - Fort Collins
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Apr 15, 2023Saturday
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kids run
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Fort Collins, CO
Larimer County, CO
32. POTS in Pants 5K
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Apr 15, 2023Saturday
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5K run
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Denver, CO
Denver County, CO
33. South Boulder Creek parkrun
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Apr 15, 2023Saturday
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5K run
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Boulder, CO
Boulder County, CO
34. Tillman Honor Run
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Apr 15, 2023Saturday
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4.2M run
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Colorado Springs, CO
El Paso County, CO
35. Desert RATS Trail Running Festival
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Apr 16, 2023Sunday
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13.1M, 10K trail run
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Fruita, CO
Mesa County, CO
36. Elevate Kids Fun Run
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Apr 16, 2023Sunday
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10K, 5K, 2.5K run
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Grand Junction, CO
Mesa County, CO
37. Healthy Kids Running Series
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Apr 16, 2023Sunday
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kids run
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Trinidad, CO
Las Animas County, CO
38. Healthy Kids Running Series - Denver
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Apr 16, 2023Sunday
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kids run
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Denver, CO
Denver County, CO
39. Healthy Kids Running Series - Aurora
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Apr 16, 2023Sunday
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kids run
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Aurora, CO
Arapahoe County, CO
40. Horsetooth Half Marathon
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Apr 16, 2023Sunday
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13.1M run
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Fort Collins, CO
Larimer County, CO
For the love of all that Is good And moisture wicking...
Though we Try To be accurate And On top Of things... Race details can change When we aren't lookin. And once in a while we simply make a mistake.
ALWAYS visit the race's website for the most complete and accurate race information.
ALWAYS visit the race's website for the most complete and accurate race information.