Colour & Glow
Grim Reaper Ultra 2026
DateSaturday, 23 May 2026Distance40 miles|70 miles|100 milesWhereGrimsthorpe Castle Lincolnshire, United Kingdom
Why this run
Gothic-themed ultra endurance race at historic castle with 40/70/100-mile options featuring nighttime running, costume runners, and grim reaper pacers
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