Race Calendar in Colorado, United States

RunAbilities FUN Walk/Run/Roll

Parker, Colorado, United States

Aug 1, 2026 (Sat)

$25.00

Running, Cycling

3.2K

Sheep Mountain Trail Runs

Fairplay, Colorado, United States

Aug 1, 2026 (Sat)

$100.00 - $180.00

Trail running

22.9K Ultra

Popsicle 5K/10K/Half - Colorado Springs

Colorado Springs, Colorado, United States

Aug 1, 2026 (Sat)

$35.00 - $60.00

Running

5K 10K Half-Marathon +5

STEPS TO EMPOWER

Colorado Springs, Colorado, United States

Aug 1, 2026 (Sat)

$25.00

Running

1.6K 5K

12th Annual Run for the Ring

Aurora, Colorado, United States

Aug 1, 2026 (Sat)

$37.00 - $40.00

Running

5K

Bound for Boston Marathon & Half Marathon - Denver

Denver, Colorado, United States

Aug 2, 2026 (Sun)

$45.00 - $95.00

Running

Marathon Half-Marathon

Boulder Kids' Tri Camp

Boulder, Colorado, United States

Aug 3, 2026 (Mon) – Aug 7, 2026

$200.00

Triathlon

Boulder Kids' Tri Camp

Eltuck Valley 5K - Lory Summer Trail Series

Fort Collins, Colorado, United States

Aug 4, 2026 (Tue)

$30.00

Running

5K

Aug 6 - Beginner & Advanced @ Stratton

Colorado Springs, Colorado, United States

Aug 6, 2026 (Thu)

Eldorado Run for the Cure

Eldorado Springs, Colorado, United States

Aug 6, 2026 (Thu)

$30.00

Running

6.4K

Aug 6 - Intermediate @ Cheyenne Mountain State Park

Colorado Springs, Colorado, United States

Aug 6, 2026 (Thu)

BRR All-Comers Summer Track & Field Series #5

Boulder, Colorado, United States

Aug 6, 2026 (Thu)

$20.00

Running

Ultra 1.6K