September Races in Colorado
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.
City Location
Featured Listing
1. Fall Equinox Marathon
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Sep 22, 2024Sunday
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26.2M, 13.1M, 5M run
Virtual OptionMore Information
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Boston Marathon Qualifier
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Fort Collins, CO
Larimer County, CO
1. 10K at 10,000 Feet Trail Run
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Sep 1, 2024Sunday
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10K, 5K trail run
More Information
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Steamboat Springs, CO
Routt County, CO
2. Calarat Challenge Trail Running Festival
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Sep 1, 2024Sunday
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13.1M, 10K trail run
More Information
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Jamestown, CO
Boulder County, CO
3. Denver Broncos 7K
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Sep 1, 2024Sunday
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7K run | kids run
More Information
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Denver, CO
Denver County, CO
4. Orangetheory 5K at Labor Day Lift Off
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Sep 1, 2024Sunday
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5K run
More Information
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Colorado Springs, CO
El Paso County, CO
5. Recovery Run of the Rockies 5K
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Sep 1, 2024Sunday
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5K run
More Information
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Fort Collins, CO
Larimer County, CO
6. Wine Run 5K at Holy Cross Abbey
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Sep 1, 2024Sunday
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5K run
More Information
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Canon City, CO
Fremont County, CO
7. Labor Day Half Marathon
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Sep 2, 2024Monday
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13.1M, 10K, 5K run
More Information
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Parker, CO
Douglas County, CO
8. Oak Creek No Fun Run
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Sep 2, 2024Monday
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5K run
More Information
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Oak Creek, CO
Routt County, CO
9. Breck Crest Mountain Marathon
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Past DateSep 3, 2023Sunday
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23M, 13.1M, 10K trail run
More Information
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Breckenridge, CO
Summit County, CO
10. Lakewood Trail Series
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Sep 4, 2024Wednesday
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7M, 4M trail run
More Information
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Lakewood, CO
Jefferson County, CO
11. Roost Rebellion Relays
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Sep 4, 2024Wednesday
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4M relay
More Information
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Denver, CO
Denver County, CO
12. Flaming Foliage Relay
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Sep 6, 2024Friday
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160M relay
More Information
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startIdaho Springs, COfinishBuena Vista, COClear Creek County, COChaffee County, CO
13. Alberta Peak Challenge
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Sep 7, 2024Saturday
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12M, 4M trail run
More Information
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Pagosa Springs, CO
Archuleta County, CO
14. Aspen parkrun
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Sep 7, 2024Saturday
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5K run
More Information
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Aspen, CO
Pitkin County, CO
15. Black Squirrel Half Marathon
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Sep 7, 2024Saturday
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13.1M trail run
More Information
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Bellvue, CO
Larimer County, CO
16. Blue Shoe Run for Prostate Cancer
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Sep 7, 2024Saturday
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5K run
More Information
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Denver, CO
Denver County, CO
17. Cirque Series - Arapahoe Basin
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Sep 7, 2024Saturday
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8.8M trail run
More Information
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Keystone, CO
Summit County, CO
18. Desert's Edge Triathlon
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Sep 7, 2024Saturday
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olympic, sprint triathlon | sprint offroad triathlon
More Information
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Fruita, CO
Mesa County, CO
19. Devil on the Divide
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Sep 7, 2024Saturday
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50K, 22K trail run
More Information
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Empire, CO
Clear Creek County, CO
20. Harvest Moon Long Course Triathlon
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Sep 7, 2024Saturday
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half triathlon | half duathlon
More Information
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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.
