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. Aspen parkrun
2. Chasing Santa 5K
3. ColderBOLDER
4. Nielson Two Mile Challenge
5. South Boulder Creek parkrun
6. Jingle Bell Run - Northern Colorado
7. Neighborhood Fun Run - Ugly Sweater Run
8. RMRR Trophy Series
9. Rock Canyon Half Marathon
10. Rudolph Ramble 5K
11. All-Out Fa La La
12. Aspen parkrun
13. Aspen Summit for Life
14. Four Corners Quad Keyah
15. Jingle Bell 5K
16. Sawmill Trail Runs
17. South Boulder Creek parkrun
18. Sweaty Sweater - Ugly Sweater Run/Walk
19. Winterfest 5K
20. Chilly Cheeks Duathlon or 4 Mile Run Series

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.