October 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
1. Lakewood Trail Series
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Oct 1, 2020Thursday
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4M trail run
More Information
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Lakewood, CO
Jefferson County, CO
2. AppleFest 5K
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Oct 2, 2021Saturday
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5K run
Race Website
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Cedaredge, CO
Delta County, CO
3. Aspen parkrun
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Oct 3, 2020Saturday
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5K run
More Information
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Aspen, CO
Pitkin County, CO
4. Castle Rock Trail Festival
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Oct 3, 2020Saturday
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50K, 26.2M, 13.1M, 10K, 5K trail run
Race Web Page
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Castle Rock, CO
Douglas County, CO
5. Castlewood Canyon Fun Run
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CancelledOct 3, 2020Saturday
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10H, 6H, 26.2M, 13.1M trail run
Race Information
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Franktown, CO
Douglas County, CO
6. Colorado Brewery Running Series - Prost Brewing
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Oct 3, 2020Saturday
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5K run
More Information
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Denver, CO
Denver County, CO
7. Crested Butte Ultra
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Oct 3, 2020Saturday
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105K, 55K trail run
More Information
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Crested Butte, CO
Gunnison County, CO
8. Emerald Mountain Trail Run
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Oct 3, 2020Saturday
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12K, 5K trail run | kids run
Race Web Page
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Steamboat Springs, CO
Routt County, CO
9. Glenwood Canyon Shuffle
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On-Site RaceCancelledOct 3, 2020SaturdayVirtual OptionVirtual Option
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13.1M, 5K run
More Information
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Glenwood Springs, CO
Garfield County, CO
10. High Drive Challenge
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Oct 3, 2020Saturday
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10M, 4M trail run | kids run
More Information
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Colorado Springs, CO
El Paso County, CO
11. Just for J Superhero 5K
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Oct 3, 2020Saturday
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5K, 1M run
Race Web Page
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Denver, CO
Denver County, CO
12. Louisville Trail Race
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CancelledOct 3, 2020Saturday
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13.1M, 10K, 5K run | kids run
More Information
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Louisville, CO
Boulder County, CO
13. Nielson Two Mile Challenge
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Oct 3, 2020Saturday
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2M trail run
More Information
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Colorado Springs, CO
El Paso County, CO
14. Rim To Rim Royal Gorge Race Weekend
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CancelledOct 3, 2020Saturday
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10K, 5K run
Race Website
- Canon City, CO
15. Runway 5K Run for the Angels
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On-Site RaceOct 3, 2020SaturdayVirtual OptionVirtual Option
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5K run
More Information
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Broomfield, CO
Broomfield County, CO
16. Rut Run 5K
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Oct 3, 2020Saturday
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5K run
Race Web Page
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Estes Park, CO
Larimer County, CO
17. Second Wind Walk/Run
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CancelledOct 3, 2020Saturday
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5K run
Race Website
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Littleton, CO
Arapahoe County, CO
18. South Boulder Creek parkrun
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Oct 3, 2020Saturday
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5K run
More Information
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Boulder, CO
Boulder County, CO
19. Spanish Peaks Downhill Half Marathon and 5K Fun Run
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Oct 3, 2020Saturday
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13.1M, 5K run
More Information
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La Veta, CO
Huerfano County, CO
20. Spanish Peaks Downhill Half Marathon
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Oct 3, 2020Saturday
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13.1M, 5K run | kids run
Race Web Page
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La Veta, CO
Huerfano 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.