Tough Mudder - World's Toughest Mudder

World's Toughest Mudder

World's Toughest Mudder is a 24 hour obstacle course event held on June 27 and 28, 2026, at Belvoir Castle in Grantham, Lincolnshire, NG32 1PE, UK. The course is composed of repeated 5-mile loops that include climbs, varied terrain, and a changing set of obstacles, including both new elements and reimagined classics.

Notable obstacles listed for the event include Arctic Enema, described as a 34 degree ice pit; Everest, described as a greased 13 foot quarterpipe; and Kiss of Mud, described as barbed wire with roughly 14 inches of clearance above the ground. Participants may encounter other obstacles and course features that evolve during the event.

Ticket types for the weekend include individual entries, four person team relay entries, pit crew or spectator passes, and a post event brunch. Prices on the page show a starting point of $499 for individual and team relay entries, $35 for pit crew or spectator passes, and $50 for the brunch session. The pit area is described as offering reserved campsites, food trucks, music, event announcers, and a race center.

Finishers receive participant items such as an event bib, a finisher headband, and a finisher shirt. Medals and prizes are noted for qualified Contenders. An Adaptive Athlete Programme and team relay options are available to support a range of participants. Visit the organization's website for the most recent information.