Illinois Mud Run & Obstacle Race Calendar 2025-2026

The Hill of a Race will take place in Bloomington on Saturday 16 August 2025.

The Tough Mudder - Chicago will take place in Rockford from Saturday 23 August 2025 to Sunday 24 August 2025. You can run between 5 and 15 kilometers.

The The Ultimate Suck will take place in Cuba from Friday 29 August 2025 to Sunday 31 August 2025. You can run between 4 and 36 kilometers.

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, army net crawls, and climbing challenges, the mostly flat course culminates with a fire truck hose down at the finish line. The event raises awareness and funds to combat veteran suicide, supporting the college's Student Veteran Resource Center. A non-competitive fun run option allows participants to jog or walk the course while skipping obstacles. All finishers receive a challenge coin and goodie bag, with awards for top male and female finishers. Visit the organization's website for the most recent information.

The Murphysboro Mud Monster Run is an obstacle and mud challenge held at Riverside Park in Murphysboro, Illinois. The event features a roughly 5-kilometer course with over 18 obstacles, including mud trenches, foam pits, ice baths, ropes, low crawls, slip and slides, and teamwork challenges. Participants can expect a fun, muddy experience designed to challenge and entertain all ages, with those 15 and under requiring adult accompaniment. Registration includes a custom finisher's medal, a high-quality soft t-shirt, and swag from local sponsors. The event also offers food, drinks, temporary showers, and an after-party with live music and vendors, creating a festive and family-friendly atmosphere. Visit the organization's website for the most recent information.

Midwest OCR is an obstacle course racing event held at The Cliffs Insane Terrain Off-Road Park in Marseilles, Illinois. Scheduled for September 27, 2025, it offers multiple race options including a 5K and 10K in a non-competitive "Just for Fun" division, a competitive 10K Elite race with over 30 obstacles, and the challenging Bearded Challenge featuring three laps of the 10K course. The rugged course features hills, cliffs, ravines, creeks, and wooded trails with obstacles ranging from approachable to extremely tough. Participants receive a finisher's shirt, medal, and professional photos. The event encourages teamwork and includes a kid’s course for ages 4-11. Visit the organization's website for the most recent information.

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 with purpose-built obstacles that simulate the physical and mental demands faced on the frontline, emphasizing courage, resilience, and readiness. It offers various race options including competitive and non-competitive 10K runs, a 5K, endurance and special forces challenges, a ruck division, and a kids' course. The race fosters camaraderie and teamwork as participants push through mud, walls, and other obstacles, making it a unique test of grit and determination in a supportive atmosphere. Visit the organization's website for the most recent information.

The Savage Race - Chicago will take place in Spring Grove on Saturday 11 July 2026. You can run between 3 and 7 kilometers.