Colorado
Colorado Obstacle Race Calendar 2027
Monthly updates for Colorado
Get new running races (and updates) in your inbox every month.
Explore the best obstacle runs in Colorado for 2027! Our updated list features 3 exciting races across the region. Find your next race in Colorado below and join the running community at these great events!
May 2027
Obstacle race weekend at Fort Carson, Colorado featuring Sprint 5 km, Super 10 km, Beast 21 km, Ultra 50 km and kids races on steep high elevation trails.
August 2027
Family friendly mud run in Denver on Aug 14, 2027 featuring obstacles, mud pits, slides and a pre party at Colorado National Speedway.
September 2027
Tough Mudder Colorado at Fort Carson on September 25, 2027 features 15K and 5K obstacle courses, spectator options, and group and volunteer programs.
Monthly updates for Colorado
Get new running races (and updates) in your inbox every month.