Obstacle Race Calendar near Aurora 2026-2027

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.

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.

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.

Choose your challenge at the CEROX + IRON fitness event. Test your endurance and strength across eight functional fitness zones, with the option of the classic Cerox (with running) or the Cerox Iron (without running). Participate as an individual or..