Upcoming Races in Boulder County, CO
Event Category
Click Here to find out what Classic, Multisport, and Variety mean.
To narrow your search by a distance or event type, you will need to select Classic, Multisport, or Variety first.
To narrow your search by a distance or event type, you will need to select Classic, Multisport, or Variety first.
1. CASA 5K
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Sep 28, 2024Saturday
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5K run
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Boulder, CO
Boulder County, CO
2. 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
3. South Boulder Creek parkrun
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Sep 28, 2024Saturday
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5K run
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Boulder, CO
Boulder County, CO
4. 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
5. Paws in the Park
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Oct 5, 2024Saturday
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5K run
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Longmont, CO
Boulder County, CO
6. South Boulder Creek parkrun
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Oct 5, 2024Saturday
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5K run
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Boulder, CO
Boulder County, CO
7. Boulder XC Series Meet 1
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Oct 12, 2024Saturday
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5K, 3K, 1K run
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Boulder, CO
Boulder County, CO
8. South Boulder Creek parkrun
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Oct 12, 2024Saturday
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5K run
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Boulder, CO
Boulder County, CO
9. The Pretzel Run Colorado
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Oct 12, 2024Saturday
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10K, 5K run | kids run
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Louisville, CO
Boulder County, CO
10. Trojan Trot 5K
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Oct 12, 2024Saturday
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run
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Longmont, CO
Boulder County, CO
11. South Boulder Creek parkrun
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Oct 19, 2024Saturday
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5K run
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Boulder, CO
Boulder County, CO
12. South Boulder Creek parkrun
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Oct 26, 2024Saturday
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5K run
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Boulder, CO
Boulder County, CO
13. MonsterDash Run - Louisville
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Oct 27, 2024Sunday
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10K, 5K trail run | kids run
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Louisville, CO
Boulder County, CO
14. Colleen De Reuck XC Classic
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Nov 2, 2024Saturday
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5K run | kids run
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Boulder, CO
Boulder County, CO
15. Sole Mates 5K
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Nov 2, 2024Saturday
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5K run
Virtual OptionMore Information
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Longmont, CO
Boulder County, CO
16. South Boulder Creek parkrun
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Nov 2, 2024Saturday
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5K run
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Boulder, CO
Boulder County, CO
17. Longmont Turkey Trot
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Nov 9, 2024Saturday
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10K, 2M run
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Longmont, CO
Boulder County, CO
18. South Boulder Creek parkrun
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Nov 9, 2024Saturday
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5K run
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Boulder, CO
Boulder County, CO
19. Team Boss CO Mile + 2 Mile 4 REAL
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Nov 12, 2024Tuesday
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2M, 1M run
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Niwot, CO
Boulder County, CO
20. South Boulder Creek parkrun
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Nov 16, 2024Saturday
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5K run
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Boulder, 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.