Illinois
Illinois Obstacle Race Calendar 2025-2026
Explore the best obstacle runs in Illinois for 2025-2026! Our updated list features 7 exciting races across the region. Find your next race in Illinois below and join the running community at these great events!
August 2025
The Ultimate SUCK is an intense endurance event held at Decker Farm in Cuba, Illinois, featuring challenging 36-hour, 12-hour, and 4-hour races. Combining elements of trail running, military-style boo..
September 2025
Operation Obstacle 2025 is a timed 2-mile obstacle course race held at Richland Community College Fitness Center in Decatur, Illinois. Featuring 15-20 obstacles such as carrying and pulling objects, a..
Midwest OCR is an obstacle-course race held at The Cliffs Insane Terrain Off-Road Park in Marseilles, Illinois. The event offers a 5K and 10K Open (Just-for-Fun) and a 10K Elite with cash prizes, plus..
The Murphysboro Mud Monster Run – Obstacle Course is held at Riverside Park in Murphysboro, Illinois. The course covers about 5 kilometers and features more than 18 obstacles including mud trenches, f..
May 2026
Frontline OCR is an obstacle course race held at Byron Motosports Park in Byron, Illinois, dedicated to honoring military personnel, veterans, and first responders. The event challenges participants w..
July 2026
The Savage Race Chicago 2026, held in Spring Grove, Illinois, is a challenging obstacle course event featuring multiple race options. The main Savage Race covers 5-7 miles with 20-30 world-class obsta..
August 2026
Tough Mudder Chicago takes place at Rockford International Airport, about an hour from downtown Chicago, on August 29–30, 2026. The weekend features 5K, 15K, and the 8-hour Infinity challenge, with 20..
