Tough Mudder - World's Toughest Mudder

World's Toughest Mudder, held at Belvoir Castle in Grantham, Lincolnshire, UK, is a grueling 24-hour obstacle course event scheduled for June 28-29, 2025. Participants face a challenging course featuring a mix of wooded climbs, open pastures, and the demanding "Hills of Belvoir," with an elevation gain of about 200 meters per lap. The event includes extreme obstacles like Electroshock Therapy, Cry Baby, and Cage Crawl, testing endurance and mental toughness.

Competitors can enter individually or as part of a four-person team relay. The atmosphere is vibrant, with campsites, food trucks, music, and a race center supporting racers and their pit crews throughout the intense all-night challenge. Visit the organization's website for the most recent information.