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The Winter Gmu

Bristol, United Kingdom • 7 Mar 2026

The Winter Green Man Ultra (Winter GMU) is a challenging ultra marathon held annually around Bristol, UK. It offers two distances: a 45-mile (72 km) full loop and a 30-mile (48 km) partial loop of the Community Forest Path, both run anti-clockwise in winter. The course features approximately 945 meters of elevation gain and includes four well-stocked checkpoints providing food, drink, and toilets.

The event is known for its muddy, tough terrain in winter, contrasting with a firmer, faster summer edition run in the opposite direction. Finishers receive bespoke medals and technical t-shirts, with hot food available at the finish. Navigation is self-guided, with pacers ("timelords") assisting runners targeting 9 to 12-hour finish times.

The race supports Avon Wildlife Trust and emphasizes environmental care along the route. Visit the organization's website for the most recent information.

United Kingdom South West (England) Bristol

Race information

Website
45 mi
945 m+
The Winter Green Man Ultra 45
30 mi
580 m+
The Winter Green Man Ultra 30
Visit the organization's website for the most recent information.
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