Half Marathons in Colorado
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. 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
2. Ned Ned Run
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Past DateSep 9, 2023Saturday
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13.1M, 10K, 5K trail run
More Information
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Nederland, CO
Boulder County, CO
3. Adams Half & 5K
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Past DateSep 17, 2023Sunday
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13.1M, 5K run
More Information
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Brighton, CO
Adams County, CO
4. 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
5. 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
6. 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
7. 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
8. Spring Equinox Races
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Past DateMar 24, 2024Sunday
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13.1M, 5K run
More Information
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Fort Collins, CO
Larimer County, CO
9. 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
10. Boulder Rez Half
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Past DateApr 13, 2024Saturday
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13.1M, 10K, 5K run
More Information
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Boulder, CO
Boulder County, CO
11. Great Western Trail Race
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Past DateApr 20, 2024Saturday
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13.1M, 10K, 5K run | kids run
More Information
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Severance, CO
Weld County, CO
12. Time Travel Half Marathon
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Past DateApr 20, 2024Saturday
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13.1M, 10K, 5K run
More Information
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Westminster, CO
Adams County, COJefferson County, CO
13. Blue Heron Half and 5K
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Past DateApr 21, 2024Sunday
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13.1M, 5K run
More Information
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Brighton, CO
Adams County, CO
14. Time Travel Half Marathon - Colorado Springs
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Past DateApr 21, 2024Sunday
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13.1M, 10K, 5K, 1M run
More Information
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Colorado Springs, CO
El Paso County, CO
15. Carbon Valley Half Marathon
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Past DateMay 11, 2024Saturday
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13.1M, 5K, 1M run | 13.1M relay | kids run
More Information
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Firestone, CO
Weld County, CO
16. Vallecito Lake Heavy Half
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Past DateMay 11, 2024Saturday
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13.1M run
More Information
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Bayfield, CO
La Plata County, CO
17. Boulder Mothers Day Run
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Past DateMay 12, 2024Sunday
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13.1M, 10K, 5K trail run
More Information
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Boulder, CO
Boulder County, CO
18. Fruita Trail Half
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Past DateMay 12, 2024Sunday
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13.1M trail run
More Information
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Fruita, CO
Mesa County, CO
19. Ram Party
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Past DateMay 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
20. Basalt Half Marathon
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Past DateJun 1, 2024Saturday
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13.1M run | 13.1M relay
More Information
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Basalt, CO
Eagle 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.
