April Half Marathons in Colorado
Denver, CO
Three Creeks Half Marathon
Apr 7, 2024
Colorado Springs, CO
Time Travel Half Marathon
Apr 21, 2024
Loveland, CO
NOCO Half Marathon & 10K
Apr 27, 2024
Littleton, CO
Platte River Half Marathon
Apr 14, 2024
Arvada, CO
Spring Fling Prairie Dog Half
Apr 13, 2025
Boulder, CO
Boulder Rez Half
Apr 13, 2024
Fort Collins, CO
Horsetooth Half Marathon
Apr 13, 2025
Severance, CO
Great Western Trail Race
Apr 20, 2024
Sat | Sun | Mon | Tue | Wed | Thu | Fri | Multiple |
1. 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
2. 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
3. Horsetooth Half Marathon
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Apr 13, 2025Sunday
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13.1M run
More Information
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Fort Collins, CO
Larimer County, CO
4. Spring Fling Prairie Dog Half
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Apr 13, 2025Sunday
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13.1M, 10K, 5K run | kids run
More Information
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Arvada, CO
Jefferson County, CO
5. Platte River Half Marathon
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Past DateApr 14, 2024Sunday
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13.1M run | 13.1M relay
More Information
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Littleton, CO
Arapahoe County, CO
6. All-Out Beat the Heat
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Apr 19, 2025Saturday
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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
7. 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
8. 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
9. 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
10. 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
11. NOCO Half Marathon & 10K
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Apr 27, 2024Saturday
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13.1M, 10K run
More Information
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Loveland, CO
Larimer County, CO
12. Runs With Scissors Races
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Apr 27, 2024Saturday
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50K, 26.2M, 13.1M run
More Information
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Brighton, CO
Adams 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.