August Classic Runs in Colorado on Saturdays
Thornton, CO
Donot Stop
Aug 31, 2024
Greeley, CO
Frontier Academy Community 5K
Aug 24, 2024
Colorado Springs, CO
Popsicle 5K/10K/Half - Colorado Springs
Aug 3, 2024
Sertoma HEARS 5K
Aug 3, 2024
Crossover for Change Fun Run
Aug 10, 2024
Community Against Violence 5K
Aug 24, 2024
Protect the Children 5K
Aug 24, 2024
Donot Stop
Aug 31, 2024
Aurora, CO
Run for the Ring 5K
Aug 3, 2024
Idaho Springs, CO
Georgetown to Idaho Springs Half Marathon
Aug 10, 2024
Grand Junction, CO
Warrior Waterfront 5K
Aug 24, 2024
Georgetown, CO
Georgetown to Idaho Springs Half Marathon
Aug 10, 2024
Centennial, CO
Arapahoe Warrior 5K
Aug 3, 2024
Westminster, CO
Jog in the Bog 5K
Aug 24, 2024
Holy Cow Trail Stampede
Aug 9, 2025
Summer Sizzler
Aug 16, 2025
Louisville, CO
Coyote Chase 5K
Aug 24, 2024
Castle Rock, CO
Reece's Roundup
Aug 3, 2024
Loveland, CO
Valley 5000
Aug 17, 2024
Broomfield, CO
Jag Jog 5K
Aug 24, 2024
Vail, CO
Dynafit Half Marathon
Aug 17, 2024
Highlands Ranch, CO
Q Man Classic
Aug 10, 2024
ThunderRidge Grizzly 2 Mile
Aug 17, 2024
Unicorn 5K South
Aug 2, 2025
Arvada, CO
All-Out Runapalooza
Aug 2, 2025
Estes Park, CO
Rocky Mountain Half Marathon
Aug 2, 2025
Boulder, CO
Boulder Rez Marathon
Aug 3, 2024
Pearl Street Mile
Aug 3, 2024
South Boulder Creek parkrun
Mar 22, 2025
Mar 29, 2025
Apr 5, 2025
Apr 12, 2025
48 more
Boulder Sunset 10K/5K
Aug 24, 2024
Allenspark, CO
Run Like the Wind
Aug 31, 2024
Palisade, CO
Just Peachy
Aug 10, 2024
Greenwood Village, CO
Saint Catherine 5K
Aug 24, 2024
Selian 5K
Aug 24, 2024
We Run So They May Walk 5K
Aug 24, 2024
Keystone, CO
Das Bier Burner 5K
Aug 31, 2024
Fort Lupton, CO
Wicked Wine Run
Aug 24, 2024
Fort Collins, CO
Choice City Running Festival - Mountain Avenue Mile & Human Race
Aug 10, 2024
Aug 9, 2024
Craig, CO
Flying Colors 5K
Aug 3, 2024
Dolores, CO
Escalante Days 5K
Aug 10, 2024
Severance, CO
Severance Days 5K
Aug 24, 2024
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Sat | Sun | Mon | Tue | Wed | Thu | Fri | Multiple |
1. All-Out Runapalooza
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Aug 2, 2025Saturday
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13.1M, 10K, 5K run
Virtual OptionMore Information
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Arvada, CO
Jefferson County, CO
2. Aspen parkrun
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Aug 2, 2025Saturday
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5K run
More Information
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Aspen, CO
Pitkin County, CO
3. Rocky Mountain Half Marathon
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Aug 2, 2025Saturday
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13.1M, 5K run
More Information
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Estes Park, CO
Larimer County, CO
4. South Boulder Creek parkrun
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Aug 2, 2025Saturday
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5K run
More Information
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Boulder, CO
Boulder County, CO
5. Unicorn 5K South
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Aug 2, 2025Saturday
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5K run
More Information
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Highlands Ranch, CO
Douglas County, CO
6. Arapahoe Warrior 5K
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Past DateAug 3, 2024Saturday
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5K run
More Information
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Centennial, CO
Arapahoe County, CO
7. Boulder Rez Marathon
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Past DateAug 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
8. Flying Colors 5K
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Past DateAug 3, 2024Saturday
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5K run
More Information
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Craig, CO
Moffat County, CO
9. Kennebec Mountain Run
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Past DateAug 3, 2024Saturday
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15M run
More Information
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Durango, CO
La Plata County, CO
10. Pearl Street Mile
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Past DateAug 3, 2024Saturday
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1M run | kids run
More Information
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Boulder, CO
Boulder County, CO
11. Popsicle 5K/10K/Half - Colorado Springs
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Past DateAug 3, 2024Saturday
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13.1M, 10K, 5K run
More Information
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Colorado Springs, CO
El Paso County, CO
12. Reece's Roundup
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Past DateAug 3, 2024Saturday
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10K, 5K run
More Information
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Castle Rock, CO
Douglas County, CO
13. Run for the Ring 5K
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Past DateAug 3, 2024Saturday
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5K run | kids run
More Information
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Aurora, CO
Arapahoe County, CO
14. Sertoma HEARS 5K
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Past DateAug 3, 2024Saturday
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5K run
More Information
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Colorado Springs, CO
El Paso County, CO
15. Aspen parkrun
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Aug 9, 2025Saturday
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5K run
More Information
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Aspen, CO
Pitkin County, CO
16. Dog Days of Summer
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Aug 9, 2025Saturday
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3.5M, 1K run | kids run
More Information
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Longmont, CO
Boulder County, CO
17. Holy Cow Trail Stampede
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Aug 9, 2025Saturday
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10K, 5K run
More Information
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Westminster, CO
Adams County, COJefferson County, CO
18. South Boulder Creek parkrun
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Aug 9, 2025Saturday
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5K run
More Information
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Boulder, CO
Boulder County, CO
19. Choice City Running Festival - Mountain Avenue Mile & Human Race
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Past DateAug 10, 2024Saturday
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13.1M, 10K, 5K run
More Information
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Fort Collins, CO
Larimer County, CO
20. Crossover for Change Fun Run
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Past DateAug 10, 2024Saturday
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5K run
More Information
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Colorado Springs, CO
El Paso 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.