Race Calendar in Colorado, United States

Oct

24

Hoofin' It Through the Hollows 5K

Centennial, Colorado, United States

$20.00

Running

5K

Oct

24

Race to Cure Sarcoma Denver

Denver, Colorado, United States

$10.00 - $35.00

Running

5K 1K +2

Oct

24

YMCA of Pueblo Spooky Sprint 5K

Pueblo, Colorado, United States

$40.00

Running

5K

Oct

24

Fall Skyline Traverse

Boulder, Colorado, United States

$25.00

Running

29K

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

Ymca Creepy Crawl 5K

Palmer Lake, Colorado, United States

Free - $45.00

Running

5K 1.3K

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

Zedikiah Scholarship 5K

Denver, Colorado, United States

Free

Running

5K

Oct

24

Apex Foundation Trick or Trot 5K & Halloween Hunt

Arvada, Colorado, United States

$10.00 - $45.00

Running

5K 1.6K

Oct

24

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

Bailey, Colorado, United States

$35.00

Trail running Running

3.2K

Oct

24

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

Pueblo, Colorado, United States

Free

Running

5K

Oct

25

The 14th Annual Odyssey Odyssey - 2026

Denver, Colorado, United States

Free

Running

5K 1.6K