Running Race Calendar in Colorado, United States

2026 Suicide Prevention Color Walk/Run

Center, Colorado, United States

Sep 26, 2026 (Sat)

$25.00

Running

5K

Run For Your Flapjacks 5K

Oak Creek, Colorado, United States

Sep 26, 2026 (Sat)

$25.00

Running

5K

Runway 5K - Run for the Angels

Broomfield, Colorado, United States

Sep 26, 2026 (Sat) – Oct 3, 2026

$25.00 - $40.00

Running

5K

HRCA Oktoberfest 5K

Littleton, Colorado, United States

Sep 26, 2026 (Sat)

$40.00

Running

5K

Lisa Nelson’s Mustang Stampede 5K

Arvada, Colorado, United States

Sep 26, 2026 (Sat)

$25.00

Running

5K

McGinn Memorial Cross Country Challenge

Pagosa Springs, Colorado, United States

Sep 26, 2026 (Sat)

Free

Running

3K 5K

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

Centennial, Colorado, United States

Sep 26, 2026 (Sat)

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Parker Parks and Recreation So Long to Summer 5K/10K

Parker, Colorado, United States

Sep 26, 2026 (Sat)

$40.00 - $50.00

Running

5K 10K

Mesa County Search & Rescue 5K

Fruita, Colorado, United States

Sep 26, 2026 (Sat)

$25.00

Running

5K

Pat Mahan Memorial Foundation 5K

Wiggins, Colorado, United States

Sep 27, 2026 (Sun)

$40.00

Running

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

Joy & Justice 5k

Timnath, Colorado, United States

Sep 27, 2026 (Sun)

$15.00 - $40.00

Running, Walking

5K 1.6K