December Races in Colorado

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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.

1. Chasing Santa 5K
2. Jingle Bell Run - Northern Colorado
3. RMRR Trophy Series
4. Rock Canyon Half Marathon
5. Rudolph Ramble 5K
6. All-Out Fa La La
7. Aspen parkrun
8. ColderBOLDER
9. Four Corners Quad Keyah
10. Jingle Bell 5K
11. Nielson Two Mile Challenge
12. South Boulder Creek parkrun
13. Annual Cookie Mile
14. Chilly Cheeks Duathlon or 4 Mile Run Series
15. Summit for Life
16. Sweaty Sweater - Ugly Sweater Run/Walk
17. Ugly Sweater Brew Run With LandLocked Ales
18. Jingle Bell Run - Denver
19. Aspen parkrun
20. CO Brewery Running Series - Periodic Brewing

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.