Michigan Mud Run & Obstacle Race Calendar 2025-2026

The Fittest 5k by Fitness Coliseum, held in Owosso, Michigan, is a unique event that combines a traditional 5k run with various fitness challenges. Participants complete running segments interspersed with fitness tests such as Ski Erg calories, dumbbell push presses, kettlebell swings, box step overs, overhead plate carries, sit-ups, and air bike calories. The event offers two divisions: "Competitive," with set weights and standards, and "Here for a Good Time," allowing participants to choose their own weights and scales, making it accessible for all fitness levels. Runners can walk or run the course, which emphasizes fun and fitness in a supportive atmosphere. Visit the organization's website for the most recent information.

The Foreshore Adventure Run is a 5K event held at Pere Marquette Beach in Muskegon, Michigan. Celebrating its tenth year, this run features both a competitive individual 5K and a 5K Adventure Fun Run for individuals and teams, incorporating new obstacles each year. The event promotes a supportive atmosphere focused on overcoming challenges, with all proceeds benefiting the Muskegon Rescue Mission’s food pantry and homeless shelters. Participants receive a moisture-wicking short-sleeved t-shirt. The run combines fitness with community impact, making it a meaningful experience for runners and supporters alike. Visit the organization's website for the most recent information.

Tough Mudder Michigan 2026 takes place at Koenig Materials in Oxford, Michigan, less than an hour from Detroit. The event offers multiple race options, including a challenging 15K with over 20 obstacles, a 5K featuring 12+ obstacles, and the Tough Mudder Infinity, which allows participants to complete multiple laps for an extended challenge. Notable obstacles include Ladder to Hell, Cage Crawl, and Everest.

Participants receive finisher medals, shirts, headbands, and a celebratory drink upon completion. The event fosters a spirited atmosphere with a Mudder Village Festival featuring live entertainment and local food. Group packages and VIP experiences are also available. Visit the organization's website for the most recent information.

The Michigan Spartan Event Weekend takes place at Cannonsburg Ski Area near Grand Rapids, MI, offering a rugged and scenic mountain setting with trails, bridges, hills, and water crossings. Participants can choose from a Sprint 5K with 20 obstacles, a Super 10K featuring 25 obstacles, or a Kids Race of 1-3 km with obstacles. The course challenges racers with steep climbs, descents, sand pits, and classic Spartan obstacles like the Atlas Carry, Rope Climb, Spear Throw, and Fire Jump. The event fosters a spirited atmosphere with a festival vibe, including music and beer gardens, making it ideal for individuals, teams, and families seeking a tough yet fun outdoor challenge. Visit the organization's website for the most recent information.