Colorado
Colorado Obstacle Race Calendar 2025-2026
Explore the best obstacle runs in Colorado for 2025-2026! 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 2026
Tackle the iconic Spartan Weekend at Fort Carson, set at the foot of the Rockies about a mile high, with courses from kids races to a 50 km Ultra. Expect rugged obstacles, festive music and beer gardens for a full race day experience.
September 2026
Tough Mudder Colorado hits Fort Carson on Sept 26 and 27, 2026 for a muddy team obstacle festival testing grit and camaraderie. Choose a 15K, 5K or spectator pass and earn a finisher shirt, headband, medal and a free beer.
