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
Featured Listing
1. Fall Equinox Marathon
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Sep 22, 2024Sunday
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26.2M, 13.1M, 5M run
Virtual OptionMore Information
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Boston Marathon Qualifier
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Fort Collins, CO
Larimer County, CO
1. Boulder Mothers Day Run
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May 12, 2024Sunday
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13.1M, 10K, 5K trail run
More Information
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Boulder, CO
Boulder County, CO
2. Colorado Women's Classic - Westminster
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May 12, 2024Sunday
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10M, 10K, 5K run | kids run
More Information
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Women Only
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Westminster, CO
Adams County, COJefferson County, CO
3. Frank Shorter Track Classic
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May 12, 2024Sunday
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track meet
More Information
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Longmont, CO
Boulder County, CO
4. Fruita Trail Half
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May 12, 2024Sunday
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13.1M trail run
More Information
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Fruita, CO
Mesa County, CO
5. Head and Neck Cancer A Hard Thing to Swallow 5K/10K
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May 12, 2024Sunday
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10K, 5K run
Virtual OptionMore Information
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Thornton, CO
Adams County, CO
6. Mothers Day 5K
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May 12, 2024Sunday
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5K run
More Information
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Denver, CO
Denver County, CO
7. Denver Colfax Marathon
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May 19, 2024Sunday
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26.2M, 13.1M, 10M run | 26.2M relay
More Information
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Boston Marathon Qualifier
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Denver, CO
Denver County, CO
8. Healing Warriors Program 5K Fun Run
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May 19, 2024Sunday
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5K run
More Information
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Fort Collins, CO
Larimer County, CO
9. Healthy Kids Running Series - Aurora
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May 19, 2024Sunday
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kids run
More Information
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Aurora, CO
Arapahoe County, CO
10. Healthy Kids Running Series - Denver
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May 19, 2024Sunday
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kids run
More Information
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Denver, CO
Denver County, CO
11. Miles for Smiles 5K
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May 19, 2024Sunday
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5K run | kids run
More Information
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Arvada, CO
Jefferson County, CO
12. Ram Party
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May 19, 2024Sunday
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26.2M, 13.1M, 9M, 5K trail run
More Information
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Colorado Springs, CO
El Paso County, CO
13. Run to the Shrine
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May 19, 2024Sunday
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4M run
More Information
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Colorado Springs, CO
El Paso County, CO
14. Narrow Gauge 10 Mile
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May 26, 2024Sunday
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10M, 5K run
More Information
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Durango, CO
La Plata County, CO
15. Spirit Trail Run
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May 26, 2024Sunday
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26.2M, 13.1M, 8K trail run
More Information
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Buena Vista, CO
Chaffee County, CO
16. Colorado 13er
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Jun 2, 2024Sunday
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13.1M, 10K, 5K run
More Information
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Louisville, CO
Boulder County, CO
17. Crazy Legs 10K+ Trail Run
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Jun 2, 2024Sunday
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10K trail run
More Information
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Loveland, CO
Larimer County, CO
18. Dialysis Dash 5K
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Jun 2, 2024Sunday
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5K run
More Information
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Grand Junction, CO
Mesa County, CO
19. Fish Hatchery 5K
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Jun 2, 2024Sunday
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5K trail run | kids run
More Information
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Leadville, CO
Lake County, CO
20. Flamingo Day 5K
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Jun 2, 2024Sunday
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5K run
More Information
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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.