August 10Ks in Colorado
City Location
1. Human Race
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Past DateAug 1, 2020Saturday
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13.1M, 10K, 5K run | kids run
Race Website
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Fort Collins, CO
Larimer County, CO
2. Evergreen Town Race
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Past DateAug 2, 2020Sunday
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10K, 5K run
More Information
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Evergreen, CO
Jefferson County, CO
3. Longmont Sunrise Stampede
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On-Site RaceCancelledAug 8, 2020SaturdayVirtual Option
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10K, 2M run
Race Website
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Longmont, CO
Boulder County, CO
4. Reece's Roundup
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Past DateAug 10, 2019Saturday
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10K, 5K run
Race Web Page
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Castle Rock, CO
Douglas County, CO
5. Woodland Park Mayors Cup
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On-Site RacePast DateAug 10, 2019SaturdayVirtual Option
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10K, 5K run | kids run
More Information
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Woodland Park, CO
Teller County, CO
6. Six Pack Summer Series Westminster
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CancelledAug 13, 2020Thursday
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10K, 5K run
Race Web Page
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Westminster, CO
Adams County, COJefferson County, CO
7. Boulder Rez Marathon
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Aug 14, 2021Saturday
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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
8. Holy Cow Trail Stampede
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Aug 14, 2021Saturday
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10M, 10K, 5K run
Race Website
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Westminster, CO
Adams County, COJefferson County, CO
9. Just Peachy Run Races
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Past DateAug 15, 2020Saturday
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10K, 5K run | kids run
More Information
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Palisade, CO
Mesa County, CO
10. Cookie Chase
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Past DateRescheduledAug 16, 2020SundayCancelledApr 5, 2020Sunday
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10K, 5K run
Race Web Page
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Denver, CO
Denver County, CO
11. Ed Snell 10K
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Past DateAug 17, 2019Saturday
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10K run
Race Web Page
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Alma, CO
Park County, CO
12. All-Out Runapalooza
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Aug 21, 2021Saturday
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13.1M, 10K, 5K, 1M run
More Information
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Arvada, CO
Jefferson County, CO
13. Grand Valley Half Marathon
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Aug 21, 2021Saturday
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13.1M, 10K, 5K run
More Information
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Boston Marathon Qualifier
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Palisade, CO
Mesa County, CO
14. Boulder Sunset 10K/5K
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Aug 28, 2021Saturday
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10K, 5K run
More Information
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Boulder, CO
Boulder County, CO
15. Louisville Trail Race
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Aug 28, 2021Saturday
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13.1M, 10K, 5K run | kids run
More Information
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Louisville, CO
Boulder County, CO
16. Log Hill Hustle
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Aug 29, 2021Sunday
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10K, 5K run
More Information
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Ridgway, CO
Ouray 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.