Upcoming Half Marathons within 50 miles of Boulder, CO
1. NOCO Half Marathon & 10K
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Apr 27, 2024Saturday
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13.1M, 10K run
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Loveland, CO
29 miles point to pointLarimer County, CO
2. Rock Hawk Trail Races
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Apr 27, 2024Saturday
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13.1M, 10K, 5K trail run
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Castle Rock, CO
49 miles point to pointDouglas County, CO
3. Runs With Scissors Races
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Apr 27, 2024Saturday
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50K, 26.2M, 13.1M run
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Brighton, CO
24 miles point to pointAdams County, CO
4. 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
41 miles point to pointLarimer County, CO
5. Carbon Valley Half Marathon
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May 11, 2024Saturday
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13.1M, 5K, 1M run | 13.1M relay | kids run
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Firestone, CO
19 miles point to pointWeld County, CO
6. Boulder Mothers Day Run
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May 12, 2024Sunday
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13.1M, 10K, 5K trail run
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Boulder, CO
Boulder County, CO
7. Denver Colfax Marathon
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May 19, 2024Sunday
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26.2M, 13.1M, 10M run | 26.2M relay
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Boston Marathon Qualifier
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Denver, CO
24 miles point to pointDenver County, CO
8. Latino Ultra Nature Adventure
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Jun 1, 2024Saturday
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50K, 13.1M, 7.5M, 5K run
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Golden, CO
18 miles point to pointJefferson County, CO
9. Mountain Ridge Trail Race
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Jun 1, 2024Saturday
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21M, 13.1M, 10K, 5K trail run
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Highlands Ranch, CO
36 miles point to pointDouglas County, CO
10. REVEL Rockies
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Jun 1, 2024Saturday
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26.2M, 13.1M run
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Boston Marathon Qualifier
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Denver, CO
24 miles point to pointDenver County, CO
11. Colorado 13er
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Jun 2, 2024Sunday
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13.1M, 10K, 5K run
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Louisville, CO
8 miles point to pointBoulder County, CO
12. All-Out Summer Breeze
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Jun 8, 2024Saturday
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13.1M, 10K, 5K run
Virtual OptionMore Information
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Arvada, CO
18 miles point to pointJefferson County, CO
13. 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
31 miles point to pointArapahoe County, CO
14. 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
28 miles point to pointLarimer County, CO
15. Red, White and Brew 5K, 10K & Half Marathon
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Jun 22, 2024Saturday
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13.1M, 10K, 5K run | last man standing | kids run
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Windsor, CO
38 miles point to pointWeld County, CO
16. Slacker Half Marathon
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Jun 22, 2024Saturday
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13.1M, 4M run | 13.1M relay
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Georgetown, CO
30 miles point to pointClear Creek County, CO
17. July 4th ROCK-IT Run
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Jul 4, 2024Thursday
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13.1M, 5K run | 13.1M relay | kids run
Virtual OptionMore Information
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Castle Rock, CO
49 miles point to pointDouglas County, CO
18. Longmont Half & 5k
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Jul 4, 2024Thursday
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13.1M, 5K run
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Longmont, CO
14 miles point to pointBoulder County, CO
19. All-Out Dog Days
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Jul 13, 2024Saturday
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13.1M, 10K, 5K run
Virtual OptionMore Information
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Westminster, CO
17 miles point to pointAdams County, COJefferson County, CO
20. Prairie Dog Half and 10K - Castle Rock
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Jul 20, 2024Saturday
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13.1M, 10K, 5K run
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Castle Rock, CO
49 miles point to pointDouglas 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.