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
1. CSU International Run for Relief 5K
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Mar 25, 2023Saturday
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5K run
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Fort Collins, CO
Larimer County, CO
2. South Boulder Creek parkrun
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Mar 25, 2023Saturday
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5K run
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Boulder, CO
Boulder County, CO
3. Women2Women 5K
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Mar 25, 2023Saturday
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5K run
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Greeley, CO
Weld County, CO
4. Central Park 5K
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Mar 26, 2023Sunday
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5K run
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Denver, CO
Denver County, CO
5. RMRR Spring Marathon Training Series
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Mar 26, 2023Sunday
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20M, 10M run
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Thornton, CO
Adams County, CO
6. Spring Equinox Half Marathon
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Mar 26, 2023Sunday
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13.1M, 4M run
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Fort Collins, CO
Larimer County, CO
7. Run the Ranch
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Mar 31, 2023Friday
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10K, 5K trail run
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Loveland, CO
Larimer County, CO
8. Aspen parkrun
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Apr 1, 2023Saturday
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5K run
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Aspen, CO
Pitkin County, CO
9. Aurora Polar Plunge and 5K
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Apr 1, 2023Saturday
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5K run
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Aurora, CO
Arapahoe County, CO
10. Founder's Day 5K Color Fun Run
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Apr 1, 2023Saturday
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5K novelty run
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San Luis, CO
Costilla County, CO
11. Healthy Kids Running Series - Fort Collins
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Apr 1, 2023Saturday
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kids run
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Fort Collins, CO
Larimer County, CO
12. Longmont CollaBEERation 5K
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Apr 1, 2023Saturday
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5K run
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Longmont, CO
Boulder County, CO
13. Nielson Two Mile Challenge
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Apr 1, 2023Saturday
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2M trail run
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Colorado Springs, CO
El Paso County, CO
14. Run the Ranch
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Apr 1, 2023Saturday
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12H, 6H, 4H trail run | 12H relay
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Loveland, CO
Larimer County, CO
15. South Boulder Creek parkrun
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Apr 1, 2023Saturday
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5K run
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Boulder, CO
Boulder County, CO
16. Three Creeks Half Marathon
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Apr 1, 2023Saturday
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13.1M run
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Denver, CO
Denver County, CO
17. Boulder Voices For Children Superhero 5K
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Apr 2, 2023Sunday
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5K, 1K run
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Boulder, CO
Boulder County, CO
18. Donut Dash 5K
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Apr 2, 2023Sunday
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5K run
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Denver, CO
Denver County, CO
19. Platte River Half Marathon
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Apr 2, 2023Sunday
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13.1M run | 13.1M relay
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Littleton, CO
Arapahoe County, CO
20. RMRR Trophy Series - April
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Apr 2, 2023Sunday
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4M run
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Denver, CO
Denver 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.