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 3 exciting races across the region. Find your next race in Colorado below and join the running community at these great events!
September 2026
Tough Mudder Colorado at Fort Carson on September 26, 2026: 15K and 5K routes with 12 to 20+ obstacles, finisher medal, shirt, headband, and Mudder Village spectator pass.
November 2026
VO2Max 3K OCR in Colorado Springs on Nov 7, 2026 features an indoor/outdoor 3K course with 15 to 20 obstacles and finisher medals and t shirts.
May 2027
A weekend of Spartan obstacle races at Fort Carson, Colorado, featuring events from 5 km up to 50 km on steep, high-elevation trails with multiple obstacle counts.
Monthly updates for Colorado
Get new running races (and updates) in your inbox every month.