Upcoming Half Marathons in Colorado on Sundays
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. Colorado Brewery Running Series
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Jun 9, 2024Sunday
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13.1M, 5K run
More Information
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Littleton, CO
Arapahoe County, CO
2. Estes Park Marathon
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Jun 16, 2024Sunday
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26.2M, 13.1M run
Virtual OptionMore Information
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Estes Park, CO
Larimer County, CO
3. Emerald Mountain Epic
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Aug 4, 2024Sunday
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26.2M, 13.1M trail run
More Information
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Steamboat Springs, CO
Routt County, CO
4. Hometown Half Marathon
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Aug 11, 2024Sunday
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13.1M, 10K, 5K, 1M run | kids run
Virtual OptionMore Information
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Westminster, CO
Adams County, COJefferson County, CO
5. Erie Half & 5K
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Aug 18, 2024Sunday
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13.1M, 5K run
More Information
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Erie, CO
Weld County, CO
6. Calarat Challenge Trail Running Festival
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Sep 1, 2024Sunday
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13.1M, 10K trail run
More Information
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Jamestown, CO
Boulder County, CO
7. Nun Run
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Sep 15, 2024Sunday
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13.1M, 5K run
More Information
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Denver, CO
Denver County, CO
8. 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
9. Red Feather Trail Jamboree
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Sep 22, 2024Sunday
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13.1M trail run
More Information
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Red Feather Lakes, CO
Larimer County, CO
10. Sunlight Showdown
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Sep 22, 2024Sunday
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13.1M trail run
More Information
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Glenwood Springs, CO
Garfield County, CO
11. Bear Chase Race - Half Marathon & 10K
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Sep 29, 2024Sunday
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13.1M, 10K trail run
More Information
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Lakewood, CO
Jefferson County, CO
12. Boulderthon: Downtown Boulder Marathon
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Sep 29, 2024Sunday
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26.2M, 13.1M, 10K, 5K run | kids run
More Information
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Boulder, CO
Boulder County, CO
13. Colorado Brewery Running Series
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Oct 6, 2024Sunday
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13.1M, 5K run
More Information
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Fort Collins, CO
Larimer County, CO
14. Spooky Sprint - Colorado Springs
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Oct 6, 2024Sunday
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13.1M, 10K, 5K, 1M run | kids run
More Information
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Colorado Springs, CO
El Paso County, CO
15. Windsor Marathon
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Oct 6, 2024Sunday
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26.2M, 13.1M, 10K, 5K run | kids run
More Information
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Windsor, CO
Weld County, CO
16. Westy Half & 5K
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Oct 13, 2024Sunday
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13.1M, 5K run
More Information
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Westminster, CO
Adams County, COJefferson County, CO
17. All-Out Kooky-Spooky
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Oct 27, 2024Sunday
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13.1M, 10K, 5K run
Virtual OptionMore Information
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Golden, CO
Jefferson County, CO
18. Rim Rock Marathon and Half Marathon
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Nov 3, 2024Sunday
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26.2M, 13.1M run
More Information
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Fruita, CO
Mesa County, CO
19. Arctic Prairie Dog Half - Westminster
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Jan 19, 2025Sunday
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13.1M, 10K, 5K run
More Information
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Louisville, CO
Boulder County, CO
20. Super Half Marathon and Game Day 5K
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Feb 9, 2025Sunday
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13.1M, 5K run
More Information
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Colorado Springs, CO
El Paso 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.
