Race Calendar in Colorado, United States

Aug 6 - Intermediate @ Cheyenne Mountain State Park

Colorado Springs, Colorado, United States

06 Aug, 2026 (Thu)

Eldorado Run for the Cure

Eldorado Springs, Colorado, United States

06 Aug, 2026 (Thu)

$30.00

Running

6.4K

BRR All-Comers Summer Track & Field Series #5

Boulder, Colorado, United States

06 Aug, 2026 (Thu)

$20.00

Running

Ultra 1.6K

Aug 6 - Beginner & Advanced @ Stratton

Colorado Springs, Colorado, United States

06 Aug, 2026 (Thu)

Choice City Running Festival

Fort Collins, Colorado, United States

07 Aug, 2026 (Fri) – 08 Aug, 2026

Free - $70.00

Running

1.6K 5K 10K Half-Marathon +4

RMRR August Trophy Series

Centennial, Colorado, United States

07 Aug, 2026 (Fri)

$10.00

Running

5K

Arapahoe Warrior 5K

Centennial, Colorado, United States

08 Aug, 2026 (Sat)

$25.00

Running

5K

HRCA Splash Mash Dash Kids Triathlon

Littleton, Colorado, United States

08 Aug, 2026 (Sat)

Pat's Pony Express

Woodland Park, Colorado, United States

08 Aug, 2026 (Sat)

$65.00 - $80.00

Trail running

12.9K 25.7K 22.5K

Dog Days Of Summer 2026

Longmont, Colorado, United States

08 Aug, 2026 (Sat)

$20.00 - $35.00

Running

5.6K 1K

Leadville Boomdays International Pack Burro Race

Leadville, Colorado, United States

08 Aug, 2026 (Sat)

$65.00 - $80.00

Running

33.8K 12.9K

All-Out Runapalooza

Arvada, Colorado, United States

08 Aug, 2026 (Sat)

$40.00 - $353.00

Running

Half-Marathon 10K 5K +2