Race Calendar in Colorado, United States

Mountain Marmot Trail Run presented by Durango Running Company

Durango, Colorado, United States

26 Sep, 2026 (Sat)

$85.00

Trail running

19.3K

HRCA Oktoberfest 5K

Littleton, Colorado, United States

26 Sep, 2026 (Sat)

$40.00

Running

5K

Runway 5K - Run for the Angels

Broomfield, Colorado, United States

26 Sep, 2026 (Sat) – 03 Oct, 2026

$25.00 - $40.00

Running

5K

Oktoberfest Run 5K/10K/13.1 DENVER/AURORA

Centennial, Colorado, United States

26 Sep, 2026 (Sat)

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

OUTLAST COLORADO SPRINGS

Colorado Springs, Colorado, United States

26 Sep, 2026 (Sat)

$90.00

Trail running

29K

NIGHT NATION RUN - DENVER

Commerce City, Colorado, United States

26 Sep, 2026 (Sat)

$35.00 - $55.00

Running

5K

Sangre de Cristo Trail Festival

Westcliffe, Colorado, United States

26 Sep, 2026 (Sat) – 27 Sep, 2026

$60.00 - $350.00

Trail running

Ultra 12.9K 27K +2

Estes Epic

Estes Park, Colorado, United States

26 Sep, 2026 (Sat) – 27 Sep, 2026

$90.00 - $230.00

Mountain biking, Duathlon, Trail running

49.9K Ultra 24.1K

Mountains to the Desert Classic

Telluride, Colorado, United States

26 Sep, 2026 (Sat)

$185.00

Cycling

Ultra

25th Annual Black Canyon Triathlon

Montrose, Colorado, United States

26 Sep, 2026 (Sat)

McGinn Memorial Cross Country Challenge

Pagosa Springs, Colorado, United States

26 Sep, 2026 (Sat)

Free

Running

3K 5K

West Line Winder

Buena Vista, Colorado, United States

26 Sep, 2026 (Sat)

$125.00 - $165.00

Trail running

Ultra 30K