Grim Reaper Running Festival

The Grim Reaper Running Festival 2026 takes place at the scenic Grimsthorpe Castle Estate in South Lincolnshire. This multi-distance event offers solo races of 10, 40, 70, and 100 miles, plus a 100-mile team relay. The course features a fully marked 10-mile loop combining grass trails through ancient woodland, limestone tracks, quiet estate roads, and a disused Victorian railway line, with an elevation gain of about 550 feet per lap.

Runners can expect a friendly, supportive atmosphere suitable for all abilities. The event includes day and night 10-mile races, on-site camping, limited aid stations, and mandatory kit requirements for ultra distances. Visit the organization's website for the most recent information.