August Races within 50 miles of Broomfield, CO on Weekends
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. 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
8 miles point to pointJefferson County, CO
2. 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
39 miles point to pointLarimer County, CO
3. 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
12 miles point to pointBoulder County, CO
4. 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
26 miles point to pointDouglas County, CO
5. 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
26 miles point to pointArapahoe County, CO
6. 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
12 miles point to pointBoulder County, CO
7. HRCA Splash Mash Dash Kids Triathlon
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Past DateAug 3, 2024Saturday
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youth triathlon
More Information
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Littleton, CO
22 miles point to pointArapahoe County, CO
8. 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
12 miles point to pointBoulder County, CO
9. 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
40 miles point to pointDouglas County, CO
10. 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
19 miles point to pointArapahoe County, CO
11. Evergreen Town Race
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CancelledAug 4, 2024Sunday
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10K, 5K run
More Information
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Evergreen, CO
23 miles point to pointJefferson County, CO
12. I'm Bound for Boston Marathon & Half Marathon - Denver
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Past DateAug 4, 2024Sunday
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26.2M, 13.1M run
More Information
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Denver, CO
14 miles point to pointDenver County, CO
13. 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
17 miles point to pointBoulder County, CO
14. 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
6 miles point to pointAdams County, COJefferson County, CO
15. 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
12 miles point to pointBoulder County, CO
16. 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
46 miles point to pointLarimer County, CO
17. Forever Family 5K
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Past DateAug 10, 2024Saturday
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5K, 1.5M run | kids run
More Information
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Littleton, CO
22 miles point to pointArapahoe County, CO
18. Georgetown to Idaho Springs Half Marathon
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Past DateAug 10, 2024Saturday
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13.1M run
More Information
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startGeorgetown, CO35 miles point to pointfinishIdaho Springs, CO26 miles point to pointClear Creek County, COClear Creek County, CO
19. Georgetown to Idaho Springs Half Marathon
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Past DateAug 10, 2024Saturday
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13.1M run
More Information
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startGeorgetown, CO35 miles point to pointfinishIdaho Springs, CO26 miles point to pointClear Creek County, COClear Creek County, CO
20. Outdoor Divas Sprint Triathlon
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Aug 10, 2025Sunday
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sprint triathlon
More Information
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Women Only
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Longmont, CO
17 miles point to pointBoulder 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.