Running Race Calendar in Colorado, United States

NIGHT NATION RUN - DENVER

Commerce City, Colorado, United States

26 Sep, 2026 (Sat)

$35.00 - $55.00

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

Mesa County Search & Rescue 5K

Fruita, Colorado, United States

26 Sep, 2026 (Sat)

$25.00

Running

5K

HRCA Oktoberfest 5K

Littleton, Colorado, United States

26 Sep, 2026 (Sat)

$40.00

Running

5K

2026 Suicide Prevention Color Walk/Run

Center, Colorado, United States

26 Sep, 2026 (Sat)

$25.00

Running

5K

McGinn Memorial Cross Country Challenge

Pagosa Springs, Colorado, United States

26 Sep, 2026 (Sat)

Free

Running

3K 5K

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

Boulder, Colorado, United States

27 Sep, 2026 (Sun)

$40.00 - $500.00

Running

Half-Marathon 5K 10K

14er Fest 14K & 5K

Buena Vista, Colorado, United States

27 Sep, 2026 (Sun)

$35.00 - $50.00

Running

14K 5K

Joy & Justice 5k

Timnath, Colorado, United States

27 Sep, 2026 (Sun)

$15.00 - $40.00

Running, Walking

5K 1.6K

Rmrr Fall Marathon Training Series #3

Thornton, Colorado, United States

27 Sep, 2026 (Sun)

$20.00 - $30.00

Running

16.1K 32.2K

Colorado Coyotes Youth XC Invitational

Cenennial, Colorado, United States

27 Sep, 2026 (Sun)

$30.00

Running

2K 3K 4K

Big Waves Family 5K run/walk Presented by Brumate

Westminster, Colorado, United States

03 Oct, 2026 (Sat)

$40.00

Running

5K