Race Calendar in Colorado, United States

Jul

18

49th Annual Manassa Pioneer Days 5K Run

Manassa, Colorado, United States

Running

5K

Jul

18

Festival in the Clouds Firefighter 5K, Fun Run and Doggie Dash

Alma, Colorado, United States

Running

5K

Jul

18

Expedition Maroon Bells

Aspen, Colorado, United States

Trail running

45.1K

Jul

18

Parker Parks and Recreation Kids' TRY-athlon

Parker, Colorado, United States

Triathlon

6 to 7 years 8 to 10 years 11 to 12 years

Jul

18

TransRockies Run Charity Bibs

Buena Vista, Colorado, United States

Trail running

Ultra

Jul

18

Toni's Trot 5K

La Salle, Colorado, United States

Running

5K

Jul

18

Audi Power of Four Trail Run

Aspen, Colorado, United States

Trail running

49.9K 24.1K 10K

Jul

18

2026 OCA Colorado 5K Panda Run

Denver, Colorado, United States

Running Walking

5K 1K

Jul

18

Spring Creek Memorial Trail Run

Steamboat Springs, Colorado, United States

Running

15.3K 5K

Jul

18

Hyrox Hybrid Camp

Frederick, Colorado, United States

Running

Hyrox Hybrid Class

Jul

17

High Lonesome 100

Nathrop, Colorado, United States

Trail running

Ultra

Jul

16

PNAAF 5K Wellness Challenge

Colorado Springs, Colorado, United States

Running

5K