Running Race Calendar in Colorado, United States

PB&J Fuel Run 5K/10K/13.1 DENVER/AURORA

Centennial, Colorado, United States

Oct 31, 2026 (Sat)

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Foundry Halloween 5k

Steamboat Springs, Colorado, United States

Oct 31, 2026 (Sat)

$25.75

Running

5K

Girls on the Run Northern Colorado Fall 5K

Fort Collins, Colorado, United States

Nov 1, 2026 (Sun)

$29.00

Running

5K

RMRR November Trophy Series

Denver, Colorado, United States

Nov 1, 2026 (Sun)

$10.00

Running

15K 5K

Feet for Justice Run

Denver, Colorado, United States

Nov 1, 2026 (Sun)

$10.00 - $35.00

Running

10K 5K Kids Run

All-Out Kooky-Spooky

Golden, Colorado, United States

Nov 1, 2026 (Sun)

$25.00 - $70.00

Running

Half-Marathon 10K 5K +2

Alamosa Veterans Memorial Park Race

Alamosa, Colorado, United States

Nov 7, 2026 (Sat)

$20.00 - $35.00

Running

5K 10K

Bell Ringer 2 Miler

Loveland, Colorado, United States

Nov 7, 2026 (Sat)

$20.00

Running

3.2K

Turkey Trails- Denver

Littleton, Colorado, United States

Nov 7, 2026 (Sat)

$22.00 - $67.00

Running

1.6K 5K 10K Half-Marathon

City Park Classic (5k/10k & 1 Mile Walk of Hope for Pancreatic Cancer Research)

Denver, Colorado, United States

Nov 7, 2026 (Sat)

$20.00 - $60.00

Running, Walking

5K 10K 1.6K

Colorado Springs Veterans Day 5k

Colorado Springs, Colorado, United States

Nov 8, 2026 (Sun)

$20.00 - $37.00

Running

5K

Turkey Trails - Colorado Springs

Colorado Springs, Colorado, United States

Nov 8, 2026 (Sun)

$22.00 - $54.00

Running

1.6K 5K 10K Half-Marathon