Great Glen Ultra Marathon

Fort William, United Kingdom • 5 Jul 2025

The Great Glen Ultra Marathon is a challenging 72-mile race in Scotland, running from Fort William (Corpach) to Inverness along the scenic Great Glen Way. Featuring 8,500 feet of elevation gain, the course includes canal towpaths, forestry tracks, and some quiet roads, with the route marked by distinctive blue posts. Runners follow the High Route variant, offering spectacular views, especially over Loch Ness.

The event is designed for solo, unsupported runners with marshaled checkpoints approximately every 10 miles. Participants must complete the course within 22 hours. The race emphasizes self-sufficiency, mandatory safety kit, and environmental responsibility, making it one of Scotland’s toughest ultra challenges. Visit the organization's website for the most recent information.

Race information

UTMB 100K
72 mi
8500 m+
72 Miles
Visit the organization's website for the most recent information.
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