December Races in Colorado
Thornton, CO
Winterfest 5K
Dec 14, 2024
Denver, CO
Rudolph Ramble 5K
Dec 3, 2023
RMRR Trophy Series - December
Dec 1, 2024
Ugly Sweater 5K
Dec 15, 2024
Santa's Dash for Cash
Dec 21, 2024
Colorado Springs, CO
Chasing Santa 5K
Dec 2, 2023
Nielson Two Mile Challenge
Mar 1, 2025
Apr 6, 2024
May 4, 2024
Jun 1, 2024
8 more
Candy Cane Course
Dec 21, 2024
Grand Junction, CO
Santa Cause Run
Dec 9, 2023
Buena Vista, CO
Ugly Sweater 1 Miler
Dec 7, 2024
Westminster, CO
All-Out Fa La La
Dec 7, 2024
Candy Cane Run
Dec 15, 2024
Candy Cane Course
Dec 22, 2024
Pueblo, CO
Rock Canyon Half Marathon
Dec 3, 2023
Louisville, CO
Superior Stocking Run
Dec 3, 2023
Santa Claus Runs
Dec 14, 2024
Loveland, CO
Toy Drop
Dec 7, 2024
Boulder, CO
South Boulder Creek parkrun
Mar 22, 2025
Mar 29, 2025
Apr 6, 2024
Apr 13, 2024
48 more
ColderBOLDER
Dec 7, 2024
Pagosa Springs, CO
Ugly Sweaty Sweater 5K
Dec 16, 2023
Pine, CO
Sawmill Trail Runs
Dec 7, 2024
Windsor, CO
Santa Catch 5K & 10K
Dec 14, 2024
Fountain, CO
YMCA Jingle Jog 5k
Dec 9, 2023
Eagle, CO
Jingle Jog 5K
Dec 2, 2023
Fort Collins, CO
Sweaty Sweater 5K
Dec 9, 2023
Resolution Run 5K
Dec 31, 2024
Four Corners Monument, CO
Four Corners Quad Keyah
Dec 7, 2024
Red Feather Lakes, CO
Onesie Dash
Dec 2, 2023
Sat | Sun | Mon | Tue | Wed | Thu | Fri | Multiple |
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. RMRR Trophy Series - December
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Dec 1, 2024Sunday
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4.5M run
More Information
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Denver, CO
Denver County, CO
2. Chasing Santa 5K
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Past DateDec 2, 2023Saturday
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5K run | kids run
More Information
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Colorado Springs, CO
El Paso County, CO
3. Jingle Jog 5K
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Past DateDec 2, 2023Saturday
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5K run
More Information
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Eagle, CO
Eagle County, CO
4. Onesie Dash
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Past DateDec 2, 2023Saturday
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1M run
More Information
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Red Feather Lakes, CO
Larimer County, CO
5. Rock Canyon Half Marathon
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Past DateDec 3, 2023Sunday
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13.1M run
More Information
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Pueblo, CO
Pueblo County, CO
6. Rudolph Ramble 5K
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Past DateDec 3, 2023Sunday
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5K run
More Information
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Denver, CO
Denver County, CO
7. Superior Stocking Run
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Past DateDec 3, 2023Sunday
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5K run
More Information
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Louisville, CO
Boulder County, CO
8. All-Out Fa La La
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Dec 7, 2024Saturday
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13.1M, 10K, 5K run
Virtual OptionMore Information
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Westminster, CO
Adams County, COJefferson County, CO
9. Aspen parkrun
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Dec 7, 2024Saturday
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5K run
More Information
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Aspen, CO
Pitkin County, CO
10. ColderBOLDER
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Dec 7, 2024Saturday
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5K run
More Information
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Boulder, CO
Boulder County, CO
11. Colorado Brewery Running Series
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Dec 7, 2024Saturday
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5K run
More Information
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Longmont, CO
Boulder County, CO
12. Four Corners Quad Keyah
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Dec 7, 2024Saturday
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26.2M, 13.1M, 5K, 2M run
More Information
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Four Corners Monument, CO
Montezuma County, CO
13. Nielson Two Mile Challenge
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Dec 7, 2024Saturday
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2M trail run
More Information
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Colorado Springs, CO
El Paso County, CO
14. Sawmill Trail Runs
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Dec 7, 2024Saturday
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50K, 16M, 8M trail run
More Information
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Pine, CO
Jefferson County, CO
15. South Boulder Creek parkrun
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Dec 7, 2024Saturday
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5K run
More Information
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Boulder, CO
Boulder County, CO
16. Toy Drop
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Dec 7, 2024Saturday
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15K, 10K, 5K run
Virtual OptionMore Information
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Loveland, CO
Larimer County, CO
17. Ugly Sweater 1 Miler
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Dec 7, 2024Saturday
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1M run
More Information
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Buena Vista, CO
Chaffee County, CO
18. Main Street Fun Run
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Past DateDec 9, 2023Saturday
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1M run
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Longmont, CO
Boulder County, CO
19. Santa Cause Run
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Past DateDec 9, 2023Saturday
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5K, 1K run | kids run
More Information
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Grand Junction, CO
Mesa County, CO
20. Sweaty Sweater 5K
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Past DateDec 9, 2023Saturday
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5K run | kids run
More Information
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Fort Collins, CO
Larimer 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.