Colorado
Colorado Obstacle Race Calendar 2026-2027
Monthly updates for Colorado
Get new running races (and updates) in your inbox every month.
Explore the best obstacle runs in Colorado for 2026-2027! Our updated list features 2 exciting races across the region. Find your next race in Colorado below and join the running community at these great events!
May 2027
Two days of Spartan obstacle races at Fort Carson on high elevation terrain, offering Sprint, Super, Beast, Ultra and kids race formats.
September 2027
Tough Mudder Colorado at Fort Carson on September 25 2027 features 15K and 5K obstacle courses, finisher gear, Mudder Village spectator passes, and group packages.
Monthly updates for Colorado
Get new running races (and updates) in your inbox every month.