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

Oct

09

Manitou 5K

Manitou Springs, Colorado, United States

$25.00 - $40.00

Running

5K

Oct

10

Westy Half & 5k

Westminster, Colorado, United States

$39.00 - $64.00

Running

Half-Marathon 5K

Oct

16

Running Scared 5K/13K - Denver

Littleton, Colorado, United States

$20.00 - $50.00

Running

5K 13K 18K +4

Oct

17

Running Scared 5K/13K - Colorado Springs

Colorado Springs, Colorado, United States

$20.00 - $50.00

Running

5K 13K 18K +4

Oct

24

Race to Cure Sarcoma Denver

Denver, Colorado, United States

Running

5K 1K +2

Oct

24

Ymca of Pueblo Race Series

Pueblo, Colorado, United States

Running

5K

Oct

24

Zedikiah Scholarship 5K

Denver, Colorado, United States

Running

5K

Oct

24

Apex Foundation Trick or Trot 5K & Halloween Hunt

Arvada, Colorado, United States

Running

5K 1.6K

Oct

24

Hoofin' It Through the Hollows 5K

Centennial, Colorado, United States

Running

5K

Oct

24

Paws for Life Fun Run/Walk 5K - Sponsored by Imperial Memorial Gardens

Pueblo, Colorado, United States

Running

5K

Oct

24

Ymca Creepy Crawl 5K

Palmer Lake, Colorado, United States

Running

5K 1.3K

Oct

24

YMCA of Pueblo Spooky Sprint 5K

Pueblo, Colorado, United States

Running

5K