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May
23-24
Sa - Su

Grim Reaper Running Festival

Website

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 views around the estate lake and the castle.

The terrain is undulating but without major hills, suitable for ultra-running beginners and experienced runners alike. Aid stations are limited, so self-sufficiency is encouraged. Camping is available on-site, and the event fosters a friendly, supportive atmosphere. Visit the organization's website for the most recent information.

Always double-check with the organizer's website – things can change, and we might have sprinted past a few details!
100 mi
100 Miles
100 mi
100-Mile Team Relay
70 mi
70 Miles
40 mi
40 Miles
10 mi
10 Miles (day Race)
10 mi
10 Miles (night Race)

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