Race Calendar in Colorado, United States

Oct

24

Race to Cure Sarcoma Denver

Denver, Colorado, United States

$10.00 - $35.00

Running

5K 1K +2

Oct

24

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

Pueblo, Colorado, United States

Free

Running

5K

Oct

24

Zedikiah Scholarship 5K

Denver, Colorado, United States

Free

Running

5K

Oct

24

YMCA of Pueblo Spooky Sprint 5K

Pueblo, Colorado, United States

$40.00

Running

5K

Oct

24

Mancos Cowboy Half Marathon, 5K, and Fun Run

Mancos, Colorado, United States

Free - $85.00

Running

Half-Marathon 5K 1.6K

Oct

24

CrossFit Loveland Hyrox Sim

Loveland, Colorado, United States

Running

HEAT 1 HYROX SIM HEAT 2 HYROX SIM HEAT 3 HYROX SIM HEAT 4 HYROX SIM +3

Oct

24

McGraw Memorial Park "Quick Draw @ McGraw" 2 Mile Trail Race

Bailey, Colorado, United States

$30.00

Trail running Running

3.2K

Oct

24

Ymca Creepy Crawl 5K

Palmer Lake, Colorado, United States

Free - $45.00

Running

5K 1.3K

Oct

24

Apex Foundation Trick or Trot 5K & Halloween Hunt

Arvada, Colorado, United States

$10.00 - $45.00

Running

5K 1.6K

Oct

24

Fall Skyline Traverse

Boulder, Colorado, United States

$25.00

Running

29K

Oct

25

The 14th Annual Odyssey Odyssey - 2026

Denver, Colorado, United States

Free

Running

5K 1.6K

Oct

25

Ghosts and Goblins 5K/10K

Denver, Colorado, United States

$36.00 - $50.00

Running

5K 10K