Upcoming Marathons in Colorado
Denver, CO
Denver Colfax Marathon
May 19, 2024
May 18, 2024
REVEL Rockies
Jun 1, 2024
Sloan's Lake Search Party (SLSP)! Marathon Hourly Loop Race
Sep 7, 2024
Colorado Springs, CO
Valkyrie Trail Race
May 11, 2024
Ram Party
May 18, 2024
May 19, 2024
Colorado Springs Marathon
Sep 28, 2024
Silverton, CO
Silverton Alpine Marathon & 50K
Jul 6, 2024
Durango, CO
Southwest Series - Day 2 - CO
Nov 11, 2024
Fruita, CO
Rim Rock Marathon and Half Marathon
Nov 3, 2024
Desert RATS Trail Running Festival
Apr 12, 2025
Apr 13, 2025
Apr 11, 2025
Steamboat Springs, CO
Steamboat Marathon
Jun 2, 2024
Emerald Mountain Epic
Aug 4, 2024
Buena Vista, CO
Spirit Trail Run
May 26, 2024
Autumn Run
Sep 21, 2024
Manitou Springs, CO
Pikes Peak Ascent and Marathon
Sep 22, 2024 - Marathon
Sep 21, 2024 - Ascent
Loveland, CO
Long View Marathon
Oct 12, 2024
Aspen, CO
Aspen Valley Marathon
Jul 13, 2024
Estes Park, CO
Estes Park Marathon
Jun 16, 2024
Jun 15, 2024
Leadville, CO
Leadville Trail Marathon & Heavy Half
Jun 29, 2024
Breckenridge, CO
Breckenridge Road Marathon
Oct 12, 2024
Windsor, CO
Windsor Marathon
Oct 6, 2024
Salida, CO
Run Through Time Marathon
Mar 8, 2025
Sterling, CO
Center of the Nation Series - Day 1
Sep 30, 2024
Byers, CO
BINGO! Trail Runs
Nov 9, 2024
Fort Collins, CO
Fall Equinox Marathon
Sep 22, 2024
Long View Marathon
Oct 12, 2024
Blue Sky Trail Marathon
Oct 19, 2024
Crawford, CO
West Elk Challenge Trail Marathon
Oct 5, 2024
Four Corners Monument, CO
Four Corners Quad Keyah
Dec 7, 2024
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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. Valkyrie Trail Race
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May 11, 2024Saturday
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50K, 26.2M, 30K, 13.1M, 8M, 4M trail run
More Information
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Colorado Springs, CO
El Paso County, CO
2. Denver Colfax Marathon
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May 19, 2024Sunday
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26.2M, 13.1M, 10M run | 26.2M relay
More Information
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Boston Marathon Qualifier
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Denver, CO
Denver County, CO
3. Ram Party
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May 19, 2024Sunday
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26.2M, 13.1M, 9M, 5K trail run
More Information
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Colorado Springs, CO
El Paso County, CO
4. Spirit Trail Run
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May 26, 2024Sunday
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26.2M, 13.1M, 8K trail run
More Information
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Buena Vista, CO
Chaffee County, CO
5. REVEL Rockies
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Jun 1, 2024Saturday
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26.2M, 13.1M run
More Information
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Boston Marathon Qualifier
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Denver, CO
Denver County, CO
6. Steamboat Marathon
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Jun 2, 2024Sunday
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26.2M, 13.1M, 10K run | kids run
More Information
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Boston Marathon Qualifier
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Steamboat Springs, CO
Routt County, CO
7. Estes Park Marathon
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Jun 16, 2024Sunday
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26.2M, 13.1M run
Virtual OptionMore Information
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Estes Park, CO
Larimer County, CO
8. Leadville Trail Marathon & Heavy Half
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Jun 29, 2024Saturday
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26.2M, 15M trail run
More Information
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Leadville, CO
Lake County, CO
9. Silverton Alpine Marathon & 50K
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Jul 6, 2024Saturday
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50K, 26.2M, 8M run
More Information
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Silverton, CO
San Juan County, CO
10. Aspen Valley Marathon
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Jul 13, 2024Saturday
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26.2M, 13.1M, 5K run
More Information
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Boston Marathon Qualifier
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Aspen, CO
Pitkin County, CO
11. Boulder Rez Marathon
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Aug 3, 2024Saturday
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26.2M, 19.7M, 13.1M, 10K run | 26.2M relay
More Information
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Boulder, CO
Boulder County, CO
12. Emerald Mountain Epic
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Aug 4, 2024Sunday
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26.2M, 13.1M trail run
More Information
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Steamboat Springs, CO
Routt County, CO
13. Staunton Rocks! Marathon & Half
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Aug 24, 2024Saturday
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26.2M, 13.1M trail run
More Information
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Pine, CO
Jefferson County, CO
14. Sloan's Lake Search Party (SLSP)! Marathon Hourly Loop Race
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Sep 7, 2024Saturday
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26.2M, 13.1M run
More Information
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Denver, CO
Denver County, CO
15. Autumn Run
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Sep 21, 2024Saturday
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26.2M, 13.1M, 10K, 5K run | kids run
More Information
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Buena Vista, CO
Chaffee County, CO
16. Snow Mountain Ranch Trail Festival
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Sep 21, 2024Saturday
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50K, 13.1M, 10K, 5K trail run | 26.2M relay
More Information
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Granby, CO
Grand County, CO
17. 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
18. Pikes Peak Ascent and Marathon
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Sep 22, 2024SundayMarathon
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26.2M trail run
More Information
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Manitou Springs, CO
El Paso County, CO
19. Colorado Springs Marathon
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Sep 28, 2024Saturday
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26.2M, 13.1M, 5K run | kids run
More Information
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Colorado Springs, CO
El Paso County, CO
20. Boulderthon: Downtown Boulder Marathon
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Sep 29, 2024Sunday
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26.2M, 13.1M, 10K, 5K run | kids run
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.