The Summer GMU
Bristol, United Kingdom • 23 Aug 2025
The Summer Green Man Ultra (GMU) is a challenging ultra marathon held near Bristol, UK, featuring two race distances: a 45-mile full loop and a 30-mile partial loop of the Community Forest Path. Both races run clockwise on the same day, starting and finishing at Ashton Park School (45-mile) or starting at The White Horse, Hambrook (30-mile), with shared checkpoints and finish line. The course includes four checkpoints offering food and drink, and runners must navigate the route themselves, with optional pacing groups called "timelords." The event awards bespoke medals, technical shirts, and trophies, with special buckles for completing both summer and winter 45-mile races. It emphasizes self-sufficiency, safety, and environmental care. Visit the organization's website for the most recent information.