5K races in Colorado, United States — 2026 running calendar

Alpine Bank Boulder Thanksgiving Day 5K

Boulder, Colorado, United States

Nov 26, 2026 (Thu)

$15.00 - $35.00

Running

5K Ultra

Thanksgiving Gobble Trot Run 5K/10K/13.1 DENVER/AURORA

Centennial, Colorado, United States

Nov 28, 2026 (Sat)

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Chasing Santa 5k/Cycling Santa Toy Drive Presented by: Springs Law Group

Colorado Springs, Colorado, United States

Dec 5, 2026 (Sat)

Free - $35.00

Running, Cycling

5K 9.7K 16.1K 33.8K +3

All-Out Fa La La

Westminster, Colorado, United States

Dec 5, 2026 (Sat)

$25.00 - $70.00

Running

Half-Marathon 10K 5K +2

Candy Cane Course - Colorado Springs

Colorado Springs, Colorado, United States

Dec 5, 2026 (Sat)

$27.00 - $30.00

Running

1.6K 5K 10K 15K

Toy Drop

Loveland, Colorado, United States

Dec 5, 2026 (Sat)

$30.00 - $60.00

Running

5K 10K 15K +2

Rock Canyon Half Marathon- 40th Anniversary Run!

Pueblo, Colorado, United States

Dec 6, 2026 (Sun)

$35.00 - $55.00

Running

Half-Marathon 5K

Candy Cane Course - Denver

Westminster, Colorado, United States

Dec 6, 2026 (Sun)

$27.00 - $32.00

Running

1.6K 5K 10K 15K

Ymca Jingle Jog 5K

Fountain, Colorado, United States

Dec 12, 2026 (Sat)

Free - $40.00

Running

5K 1.3K

Santa Catch 5k & 10k

Windsor, Colorado, United States

Dec 12, 2026 (Sat)

$15.00 - $55.00

Running

5K 10K 1.6K

Sunrise Marathon 5K/10K/13.1 Denver/Aurora

Centennial, Colorado, United States

Dec 12, 2026 (Sat)

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

WinterFest 5k & Fun Run

Thornton, Colorado, United States

Dec 12, 2026 (Sat)

$25.00

Running

5K