Illinois
Illinois Obstacle Race Calendar 2026-2027
Monthly updates for Illinois
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Explore the best obstacle runs in Illinois for 2026-2027! Our updated list features 10 exciting races across the region. Find your next race in Illinois below and join the running community at these great events!
May 2026
Take on a torch-lit obstacle course at night. This event near Chicago features technical rigs, heavy carries, and archery, all under the lights. Stick around for post-race festivities including bonfires and live entertainment.
An obstacle course event at Byron Motosports Park honoring military, veterans and first responders. Multiple race options include 10K, 5K, ruck, kids course and team entries organized by the Frontline OCR Foundation.
July 2026
Spartan DEKA Chicago brings a functional fitness challenge to Navy Pier's indoor halls overlooking Lake Michigan. Participants tackle a 5 km course with 10 fitness zones across multiple formats over three days.
The H-F Beast Obstacle Course Dash in Homewood is an outdoor challenge combining running with obstacles. Younger participants tackle 8 obstacles over a mile, while those 15+ face 16 obstacles over two miles. Everyone who finishes receives a medal and..
August 2026
The Highlander Assault Obstacle Race brings a Scottish theme to the Midwest. Participants tackle classic and unique obstacles, from monkey bars to archery, on 5k, 15k, or family 3k courses. Every finisher earns a medal and shirt.
Hill of a Race on August 15, 2026 in Bloomington, IL offers an Endurance Challenge, competitive men's and women's divisions including master's 40+, and a series of recreational waves over an obstacle course.
Tough Mudder Chicago brings its signature obstacle course to Rockford International Airport. Choose from a 5K, 15K, or the 8-hour Infinity challenge, tackling mud, trails, and unique obstacles. Finishers earn a medal, headband, shirt, and a celebrato..
September 2026
The Ultimate SUCK is a grueling multi-hour endurance challenge on an Illinois farm. Participants face undisclosed physical tests blending farm work, military drills, and trail running. Three timed options are available, each with strict gear and no-s..
Midwest OCR at The Cliffs Insane Terrain Off-Road Park near Marseilles, IL offers 5K and 10K obstacle courses, a competitive 10K Elite with cash prizes, a three lap Bearded Challenge, ruck options, and a kids course.