Race Calendar in Colorado, United States

2026 Rocky Mountain Strength Rendezvous

Littleton, Colorado, United States

01 Aug, 2026 (Sat)

$75.00

Adventure race

4.8K

Popsicle 5K/10K/Half - Colorado Springs

Colorado Springs, Colorado, United States

01 Aug, 2026 (Sat)

$35.00 - $60.00

Running

5K 10K Half-Marathon +5

Kennebec Mountain Run

Hesperus, Colorado, United States

01 Aug, 2026 (Sat)

$75.00

Trail running

24.1K

Bound for Boston Marathon & Half Marathon - Denver

Denver, Colorado, United States

02 Aug, 2026 (Sun)

$45.00 - $95.00

Running

Marathon Half-Marathon

Eltuck Valley 5K - Lory Summer Trail Series

Fort Collins, Colorado, United States

04 Aug, 2026 (Tue)

$25.00

Running

5K

Aug 6 - Beginner & Advanced @ Stratton

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 - Intermediate @ Cheyenne Mountain State Park

Colorado Springs, Colorado, United States

06 Aug, 2026 (Thu)

RMRR August Trophy Series

Centennial, Colorado, United States

07 Aug, 2026 (Fri)

$10.00

Running

5K

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

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