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August Races in Colorado

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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.

Boulder Stroke & Stride Series #9
Colorado Cancer Foundation Run for the Cure
Summit Trail Running Series #5
High Lonesome 100
RMRR Trophy Series
Wild West Relay
Atalanta 5K
Bec Tri
CO Brewery Running Series - Call to Arms Brewing
Denver: bRUNch At Quality Italian
Evergreen Trail Racing Series - Staunton State Park
Ironman 70.3 Boulder
IRONMAN Boulder Friends & Family 5K
Kennebec Mountain Run
La Sportiva Berry Picker Trail Run
Nielson Two Mile Challenge
Rocky Mountain Half Marathon
Run for Rwanda 5K
Run For The Ring

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.