Half Marathons in Colorado
1. Runoff Runoff
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Past DateJun 3, 2023Saturday
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26.2M, 13.1M, 6.6K run
More Information
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Creede, CO
Mineral County, CO
2. South Park Trail Marathon
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Past DateJun 3, 2023Saturday
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26.2M, 13.1M run
More Information
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Fairplay, CO
Park County, CO
3. Evit's Hope Half
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Past DateJun 10, 2023Saturday
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13.1M, 5K, 1M trail run
Virtual OptionMore Information
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Colorado Springs, CO
El Paso County, CO
4. Storm the Castle
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CancelledJul 15, 2023Saturday
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13.1M trail run
Virtual OptionMore Information
- Guffey, CO
5. Aspen Backcountry Marathon
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Past DateAug 5, 2023Saturday
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26.2M, 13.1M trail run
More Information
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Aspen, CO
Pitkin County, CO
6. Breck Crest Mountain Marathon
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Past DateSep 3, 2023Sunday
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23M, 13.1M, 10K trail run
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Breckenridge, CO
Summit County, CO
7. 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
More Information
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Jamestown, CO
Boulder County, CO
8. 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
9. Adams Half & 5K
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Past DateSep 17, 2023Sunday
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13.1M, 5K run
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Brighton, CO
Adams County, CO
10. Breckenridge Road Marathon
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Past DateOct 7, 2023Saturday
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26.2M, 13.1M, 10K run | kids run
More Information
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Boston Marathon Qualifier
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Breckenridge, CO
Summit County, CO
11. Mancos Cowboy Half Marathon
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Past DateOct 14, 2023Saturday
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13.1M, 5K run | kids run
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Mancos, CO
Montezuma County, CO
12. Latino Ultra Nature Adventure
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Past DateOct 22, 2023Sunday
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55K, 13.1M, 10K, 5K run
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Boulder, CO
Boulder County, CO
13. Rock Canyon Half Marathon
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Past DateDec 3, 2023Sunday
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13.1M run
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Pueblo, CO
Pueblo County, CO
14. Ralston Creek Half Marathon
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Past DateFeb 18, 2024Sunday
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13.1M, 5K run
More Information
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Arvada, CO
Jefferson County, CO
15. Time to Paddy 5K/10K and Lucky 13.1
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Past DateMar 2, 2024Saturday
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13.1M, 10K, 5K run | kids run
Virtual OptionMore Information
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Colorado Springs, CO
El Paso County, CO
16. That Dam Run
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Past DateMar 3, 2024Sunday
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13.1M, 10K, 5K run | kids run
More Information
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Greenwood Village, CO
Arapahoe County, CO
17. Time to Paddy 5K/10K and Lucky 13.1
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Past DateMar 3, 2024Sunday
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13.1M, 10K, 5K run | kids run
Virtual OptionMore Information
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Denver, CO
Denver County, CO
18. Spring Equinox Races
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Past DateMar 24, 2024Sunday
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13.1M, 5K run
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Fort Collins, CO
Larimer County, CO
19. Three Creeks Half Marathon
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Past DateApr 7, 2024Sunday
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13.1M run
More Information
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Denver, CO
Denver County, CO
20. 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
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.