Half Marathons within 50 miles of Brighton, CO on Sundays
City Location
1. 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
2. Ralston Creek Half Marathon
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Past DateFeb 18, 2024Sunday
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13.1M, 5K run
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Arvada, CO
19 miles point to pointJefferson County, CO
3. That Dam Run
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Past DateMar 3, 2024Sunday
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13.1M, 10K, 5K run | kids run
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Greenwood Village, CO
26 miles point to pointArapahoe County, CO
4. 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
19 miles point to pointDenver County, CO
5. 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
44 miles point to pointLarimer County, CO
6. Three Creeks Half Marathon
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Past DateApr 7, 2024Sunday
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13.1M run
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Denver, CO
19 miles point to pointDenver County, CO
7. Horsetooth Half Marathon
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Past DateApr 14, 2024Sunday
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13.1M run
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Fort Collins, CO
44 miles point to pointLarimer County, CO
8. Platte River Half Marathon
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Past DateApr 14, 2024Sunday
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13.1M run | 13.1M relay
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Littleton, CO
28 miles point to pointArapahoe County, CO
9. Spring Fling Prairie Dog Half
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Past DateApr 14, 2024Sunday
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13.1M, 10K, 5K run | kids run
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Arvada, CO
19 miles point to pointJefferson County, CO
10. Blue Heron Half and 5K
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Apr 21, 2024Sunday
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13.1M, 5K run
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Brighton, CO
Adams County, CO
11. Colorado Marathon
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May 5, 2024Sunday
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26.2M, 13.1M, 10K, 5K run | 26.2M relay
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Boston Marathon Qualifier
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Fort Collins, CO
44 miles point to pointLarimer County, CO
12. 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
19 miles point to pointDenver County, CO
13. Colorado 13er
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Jun 2, 2024Sunday
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13.1M, 10K, 5K run
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Louisville, CO
17 miles point to pointBoulder County, CO
14. Colorado Brewery Running Series
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Jun 9, 2024Sunday
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13.1M, 5K run
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Littleton, CO
28 miles point to pointArapahoe County, CO
15. 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
46 miles point to pointLarimer County, CO
16. 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
16 miles point to pointAdams County, COJefferson County, CO
17. Erie Half & 5K
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Aug 18, 2024Sunday
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13.1M, 5K run
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Erie, CO
13 miles point to pointWeld County, CO
18. Nun Run
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Sep 15, 2024Sunday
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13.1M, 5K run
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Denver, CO
19 miles point to pointDenver County, CO
19. 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
44 miles point to pointLarimer County, CO
20. Boulderthon: Downtown Boulder Marathon
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Sep 29, 2024Sunday
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26.2M, 13.1M, 10K, 5K run | kids run
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Boulder, CO
24 miles point to pointBoulder 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.