14th Annual Mudder's Day Madness Mud Run 5K & Fun Run 2026

Get ready to dive into the muck and mayhem at the 14th Annual Mudder's Day Madness Mud Run 5K & Fun Run on Saturday, May 9, 2026, in scenic Maryville, TN. This beloved event, held at Montvale Springs, offers a truly unique and challenging experience for all ages and fitness levels. Participants can choose between the timed 5K or the family-friendly 1-mile Fun Run, both promising an unforgettable journey through East Tennessee's muddiest trails.

The 5K course is a thrilling adventure, boasting over twenty formidable obstacles designed to test your grit and agility. Expect to conquer features like Adversity Hill, the treacherous Tire Traverse, and the towering A-Frame Climb, all capped off with an exhilarating dip in the lake. You'll navigate uneven, wet, muddy, rocky, and slippery terrain with rolling hills, offering both a physical challenge and picturesque views of the surrounding landscape. Costumes are highly encouraged, adding to the festive atmosphere, with awards for the most creative team ensembles.

Beyond the mud and obstacles, the Mudder's Day Madness is a celebration supporting Harmony Family Center's vital therapeutic programming at Camp Montvale, including equine therapy and camps for foster and adoptive children and families. After conquering the course, runners can clean up at outdoor showers and enjoy a vibrant post-race area featuring vendors, food trucks, refreshments, and music, with a beer tent sponsored by Peaceful Side Brewery. Typical race day conditions in May bring pleasant highs around 78°F and lows around 56°F, with a modest 15% chance of precipitation, creating perfect muddy fun conditions.