Race Calendar in Colorado, United States

West Line Winder

Buena Vista, Colorado, United States

Sep 26, 2026 (Sat)

$125.00 - $165.00

Trail running

Ultra 30K

OUTLAST COLORADO SPRINGS

Colorado Springs, Colorado, United States

Sep 26, 2026 (Sat)

$100.00

Trail running

29K

2026 Suicide Prevention Color Walk/Run

Center, Colorado, United States

Sep 26, 2026 (Sat)

$25.00

Running

5K

Estes Epic

Estes Park, Colorado, United States

Sep 26, 2026 (Sat) – Sep 27, 2026

$90.00 - $265.00

Mountain biking, Duathlon, Trail running

49.9K Ultra 24.1K

NIGHT NATION RUN - DENVER

Commerce City, Colorado, United States

Sep 26, 2026 (Sat)

$35.00 - $55.00

Running

5K

Mountains to the Desert Classic

Telluride, Colorado, United States

Sep 26, 2026 (Sat)

$210.00

Cycling

Ultra

Mountain Marmot Trail Run presented by Durango Running Company

Durango, Colorado, United States

Sep 26, 2026 (Sat)

$90.00

Trail running

19.3K

Colorado Coyotes Youth XC Invitational

Cenennial, Colorado, United States

Sep 27, 2026 (Sun)

$30.00

Running

2K 3K 4K

Joy & Justice 5k

Timnath, Colorado, United States

Sep 27, 2026 (Sun)

$15.00 - $40.00

Running, Walking

5K 1.6K

Sawatch Ascent

Nathrop, Colorado, United States

Sep 27, 2026 (Sun)

$159.00

Trail running

Ultra

14er Fest 14K & 5K

Buena Vista, Colorado, United States

Sep 27, 2026 (Sun)

$35.00 - $50.00

Running

14K 5K

Running for Children's Rights to Both Parents - 9 of 50 Half Marathons in 50 States - Colorado

Boulder, Colorado, United States

Sep 27, 2026 (Sun)

$40.00 - $500.00

Running

Half-Marathon 5K 10K