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 7 exciting races across the region. Find your next race in Colorado below and join the running community at these great events!
May 2026
Join the Aurora community for an untimed 1k fun run or a timed 5k race ending with an optional muddy obstacle course. This rain or shine event welcomes runners and walkers of all ages.
Test your endurance at high altitude with a range of obstacle course races from 5K to 50K held at the scenic Fort Carson Army Base near Pikes Peak.
Experience a hybrid fitness challenge in the shadow of the Rockies featuring a 5 km run and 10 functional fitness zones. Choose from individual, ruck, or team categories at the premier Gaylord Rockies Resort.
June 2026
Experience up to three miles of messy fun at the Colorado National Speedway. Navigate obstacles by crawling wading and sliding through the mud with friends and family during this unique event in Dacono.
Test your strength at this exclusive obstacle course event in Peyton featuring a three lap 3K race and a one mile kids run. Navigate rigs, rope climbs, and heavy carries in a small field of only fifty athletes.
Experience a half marathon in the mountains of Nederland Colorado. This event features a significant elevation gain of 4226 feet with the summit always in view.
September 2026
Tough Mudder Colorado returns to Fort Carson on September 26, 2026. Choose the 15K or 5K course packed with signature obstacles like Electroshock Therapy. Finishers earn medals, shirts, and a celebratory drink.