April 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
1. Run the Ranch
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Past DateApr 5, 2024Friday
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10K, 5K trail run
More Information
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Loveland, CO
Larimer County, CO
2. Aspen parkrun
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Past DateApr 6, 2024Saturday
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5K run
More Information
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Aspen, CO
Pitkin County, CO
3. Aurora Polar Plunge and 5K
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Past DateApr 6, 2024Saturday
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5K run
More Information
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Aurora, CO
Arapahoe County, CO
4. Baylon Michael Meyer 5K/10K Memorial Run
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Past DateApr 6, 2024Saturday
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10K, 5K run
Virtual OptionMore Information
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Pueblo West, CO
Pueblo County, CO
5. Donut Dash 5K
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Apr 6, 2025Sunday
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5K run
More Information
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Denver, CO
Denver County, CO
6. Mav Days 5K Run/Walk
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Past DateApr 6, 2024Saturday
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5K run | kids run
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Grand Junction, CO
Mesa County, CO
7. Nielson Two Mile Challenge
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Past DateApr 6, 2024Saturday
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2M trail run
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Colorado Springs, CO
El Paso County, CO
8. Raptor Run
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Past DateApr 6, 2024Saturday
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5K run
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Brighton, CO
Adams County, CO
9. Run the Ranch
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Past DateApr 6, 2024Saturday
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12H, 6H, 4H trail run | 12H relay
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Loveland, CO
Larimer County, CO
10. South Boulder Creek parkrun
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Past DateApr 6, 2024Saturday
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5K run
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Boulder, CO
Boulder County, CO
11. Healthy Kids Running Series
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Past DateApr 7, 2024Sunday
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kids run
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Trinidad, CO
Las Animas County, CO
12. RMRR Trophy Series - April
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Past DateApr 7, 2024Sunday
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4M run
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Denver, CO
Denver County, CO
13. Three Creeks Half Marathon
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Past DateApr 7, 2024Sunday
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13.1M run
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Denver, CO
Denver County, CO
14. Desert RATS Trail Running Festival
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Past DateApr 12, 2024Friday
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100K trail run
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Fruita, CO
Mesa County, CO
15. All-Out Beat the Heat
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Past DateApr 13, 2024Saturday
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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
16. Aspen parkrun
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Past DateApr 13, 2024Saturday
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5K run
More Information
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Aspen, CO
Pitkin County, CO
17. Boulder Rez Half
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Past DateApr 13, 2024Saturday
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13.1M, 10K, 5K run
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Boulder, CO
Boulder County, CO
18. Desert RATS Trail Running Festival
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Past DateApr 13, 2024Saturday
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50K, 26.2M trail run
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Fruita, CO
Mesa County, CO
19. Rattler Trail Race
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Past DateApr 13, 2024Saturday
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50K, 25K, 10K trail run
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Colorado Springs, CO
El Paso County, CO
20. South Boulder Creek parkrun
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Past DateApr 13, 2024Saturday
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5K run
More Information
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Boulder, CO
Boulder 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.