Upcoming Races in Colorado on Sundays
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. 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
2. 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
3. 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
4. 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
5. 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
6. 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
7. 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
8. Severance 5K Color Run
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Apr 2, 2023Sunday
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5K, 1M novelty run
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Severance, CO
Weld County, CO
9. 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
10. 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
11. 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
12. 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
13. 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
14. 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
15. Right Here, Right Now Climate 5K
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Apr 16, 2023Sunday
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5K run | kids run
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Louisville, CO
Boulder County, CO
16. Rockin' on the River 5K
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Apr 16, 2023Sunday
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5K run
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Littleton, CO
Arapahoe County, CO
17. Spring Fling Prairie Dog Half
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Apr 16, 2023Sunday
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13.1M, 10K, 5K run | kids run
Virtual OptionMore Information
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Arvada, CO
Jefferson County, CO
18. The Diabetes Link at CU 5K Run/Walk
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Apr 16, 2023Sunday
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5K run
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Boulder, CO
Boulder County, CO
19. Colorado Brewery Running Series - Station 26 Brewing
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Apr 23, 2023Sunday
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5K run
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Denver, CO
Denver County, CO
20. FLC Fastest 5K
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Apr 23, 2023Sunday
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5K run
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Durango, CO
La Plata 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.