Running Races in Colorado, United States 2026 112 events
Browse upcoming running races in United States. Find dates, distances, and registration links.
Upcoming races
RunningIn 13 days
Colorado Coyotes Youth XC Invitational
◎ Cenennial, USA▤ Sep 27, 2026
RunningIn 3 weeks
The Bear Chase
◎ Lakewood, USA▤ Oct 3-4, 2026
RunningIn 3 weeks
Above the Clouds Ultra
◎ Woodland Park, USA▤ Oct 3, 2026
RunningIn 3 weeks
Sage Burner Trail Race
◎ Gunnison, USA▤ Oct 3, 2026
RunningIn 3 weeks
Grand Valley Backyard
◎ Loma, USA▤ Oct 3, 2026
RunningIn 3 weeks
Big Waves Family 5K run/walk Presented by Brumate
◎ Westminster, USA▤ Oct 3, 2026
5 km
RunningIn 3 weeks
Colorado Springs Marathon, Half, 5K, and Kids K
◎ Colorado Springs, USA▤ Oct 3, 2026
42.2 km
RunningIn 3 weeks
Rut Run 5k
◎ Estes Park, USA▤ Oct 3, 2026
5 km
RunningIn 3 weeks
West Elk Challenge
◎ Crawford, USA▤ Oct 3, 2026
RunningIn 3 weeks
Boulder Marathon
◎ Boulder, USA▤ Oct 4, 2026
42.195 km
RunningIn 4 weeks
Bagel Run 5K/10K/13.1 DENVER/AURORA
◎ Centennial, USA▤ Oct 10, 2026
5 km
RunningIn 4 weeks
Breckenridge RunFest
◎ Breckenridge, USA▤ Oct 10-11, 2026
RunningIn 4 weeks
Dialysis Dash 5K
◎ Grand Junction, USA▤ Oct 10, 2026
5 km
RunningIn 4 weeks
Durango Marathon
◎ Durango, USA▤ Oct 11, 2026
42.2 km
RunningIn 5 weeks
Bobcat Trail Races
◎ Colorado Springs, USA▤ Oct 17, 2026
RunningIn 5 weeks
Blue Sky Trail Marathon & Half Marathon
◎ Fort Collins, USA▤ Oct 17-18, 2026
42.2 km
RunningIn 6 weeks
Apex Foundation Trick or Trot 5K & Halloween Hunt
◎ Arvada, USA▤ Oct 24, 2026
5 km
RunningIn 6 weeks
Bridge Burner Ultra
◎ Canon City, USA▤ Oct 24, 2026
RunningIn 6 weeks
Beware the Bear Trail Races
◎ Lakewood, USA▤ Oct 25, 2026
RunningIn 7 weeks
Halloween Trick or Trot Run 5K/10K/13.1 DENVER/AURORA
◎ Aurora, USA▤ Oct 31, 2026
5 km
Also in United States
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