Tough Mudder - World's Toughest Mudder
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World’s Toughest Mudder at Belvoir Castle, 27–28 June 2026
World’s Toughest Mudder is presented as a 24 hour obstacle course event held over 27 and 28 June 2026 at Belvoir Castle, Grantham, Lincolnshire, NG32 1PE, UK. The event format uses repeated 5-mile loops over varied terrain, with a course that changes over time and features new obstacles alongside reworked classics.
Named obstacles on the course include Arctic Enema, Electroshock Therapy and Well Swung. The event offers several participation types: individual entry, a four-person team relay, pit crew / spectator passes, and a post-event brunch. Published starting prices in the source material are £411.54 for individual and team relay entries, £29.04 for pit crew / spectator passes, and £45.36 for the brunch. The brunch offering is noted as having limited spaces and is listed as sold out in the event information.
Support and event services described for the pit area include reserved campsites, food trucks, music, event announcers and a race centre. An Adaptive Athlete Programme pairs adaptive athletes with course guides to assist at obstacles. Items associated with finishing or participation include an event bib, a finisher headband, a WTM finisher shirt and medals; prizes are mentioned for qualified Contenders. Visit the organization's website for the most recent information.
