September 10Ks in Colorado
Greeley, CO
Superhero Event
Sep 21, 2024
Golden, CO
Golden Gallop
Sep 22, 2024
Steamboat Springs, CO
10K at 10,000 Feet Trail Run
Sep 1, 2024
Parker, CO
Labor Day Half Marathon
Sep 2, 2024
Louisville, CO
Louisville Trail Race
Sep 28, 2024
Nederland, CO
Ned Ned Run
Sep 9, 2023
Littleton, CO
HRCA Wildcat Mountain Trail Races
Sep 28, 2024
Frisco, CO
Run the Rockies Half Marathon
Sep 21, 2024
Breckenridge, CO
Breck Crest Mountain Marathon
Sep 3, 2023
Pagosa Springs, CO
Mountain Chile Cha Cha Trail Races
Sep 23, 2023
Beaver Creek, CO
The bRUNch Trail Run
Sep 17, 2023
Beulah, CO
Beulah Challenge
Sep 21, 2024
Minturn, CO
Meadowgold Trail Run
Sep 14, 2024
Jamestown, CO
Calarat Challenge Trail Running Festival
Sep 3, 2023
Sat | Sun | Mon | Tue | Wed | Thu | Fri | Multiple |
1. 10K at 10,000 Feet Trail Run
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Sep 1, 2024Sunday
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10K, 5K trail run
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Steamboat Springs, CO
Routt County, CO
2. Labor Day Half Marathon
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Sep 2, 2024Monday
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13.1M, 10K, 5K run
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Parker, CO
Douglas County, CO
3. Breck Crest Mountain Marathon
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Past DateSep 3, 2023Sunday
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23M, 13.1M, 10K trail run
More Information
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Breckenridge, CO
Summit County, CO
4. Calarat Challenge Trail Running Festival
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Past DateSep 3, 2023Sunday
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13.1M, 10K, 5K trail run | kids run
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Jamestown, CO
Boulder County, CO
5. Denver Rocks Run 5K/10K
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Sep 8, 2024Sunday
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10K, 5K run
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Denver, CO
Denver County, CO
6. Ned Ned Run
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Past DateSep 9, 2023Saturday
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13.1M, 10K, 5K trail run
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Nederland, CO
Boulder County, CO
7. All-Out Fall Fest
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Sep 14, 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
8. Meadowgold Trail Run
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Sep 14, 2024Saturday
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10K, 5K trail run
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Minturn, CO
Eagle County, CO
9. Trail Sisters Women's Half Marathon
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Sep 14, 2024Saturday
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13.1M, 10K trail run
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Buena Vista, CO
Chaffee County, CO
10. The bRUNch Trail Run
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Past DateSep 17, 2023Sunday
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15K, 10K, 5K trail run
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Beaver Creek, CO
Eagle County, CO
11. Autumn Run
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Sep 21, 2024Saturday
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26.2M, 13.1M, 10K, 5K run | kids run
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Buena Vista, CO
Chaffee County, CO
12. Beulah Challenge
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Sep 21, 2024Saturday
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13.1M, 10K, 5K run
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Beulah, CO
Pueblo County, CO
13. Move Forward 5K & 10K
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Sep 21, 2024Saturday
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10K, 5K run
Virtual OptionMore Information
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Denver, CO
Denver County, CO
14. Run the Rockies Half Marathon
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Sep 21, 2024Saturday
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13.1M, 10K run
More Information
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Frisco, CO
Summit County, CO
15. Snow Mountain Ranch Trail Festival
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Sep 21, 2024Saturday
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50K, 13.1M, 10K, 5K trail run | 26.2M relay
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Granby, CO
Grand County, CO
16. Superhero Event
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Sep 21, 2024Saturday
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10K, 5K, 1M run | kids run
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Greeley, CO
Weld County, CO
17. Golden Gallop
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Sep 22, 2024Sunday
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10K, 5K run | kids run
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Golden, CO
Jefferson County, CO
18. Mountain Chile Cha Cha Trail Races
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Past DateSep 23, 2023Saturday
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10K, 5K trail run
More Information
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Pagosa Springs, CO
Archuleta County, CO
19. HRCA Wildcat Mountain Trail Races
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Sep 28, 2024Saturday
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10M, 10K trail run | kids run
More Information
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Littleton, CO
Arapahoe County, CO
20. Louisville Trail Race
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Sep 28, 2024Saturday
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13.1M, 10K, 5K trail run
More Information
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Louisville, 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.