Upcoming Half Marathons in Boulder County, CO
Longmont, CO
Longmont Half & 5k
Jul 4, 2024
Louisville, CO
Colorado 13er
Jun 2, 2024
Louisville Trail Race
Sep 28, 2024
Arctic Prairie Dog Half
Jan 19, 2025
Boulder, CO
Boulder Mothers Day Run
May 12, 2024
Boulder Rez Marathon
Aug 3, 2024
Boulderthon: Downtown Boulder Marathon
Sep 29, 2024
Sat | Sun | Mon | Tue | Wed | Thu | Fri | Multiple |
1. 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
2. Colorado 13er
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Jun 2, 2024Sunday
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13.1M, 10K, 5K run
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Louisville, CO
Boulder County, CO
3. Longmont Half & 5k
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Jul 4, 2024Thursday
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13.1M, 5K run
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Longmont, CO
Boulder County, CO
4. Boulder Rez Marathon
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Aug 3, 2024Saturday
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26.2M, 19.7M, 13.1M, 10K run | 26.2M relay
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Boulder, CO
Boulder County, CO
5. Louisville Trail Race
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Sep 28, 2024Saturday
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13.1M, 10K, 5K trail run
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Louisville, CO
Boulder County, CO
6. 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
Boulder County, CO
7. 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
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.