Tentsmuir Forest 8-hour Challenge

St Andrews, United Kingdom • 18 Oct 2025

The Tentsmuir Forest 8-hour Challenge, organized by NU Limits, invites participants to complete as many 4.366-mile loops as possible within an 8-hour timeframe. The event emphasizes personal growth and community, encouraging runners of all levels to push their limits. The scenic route features trail paths with a modest ascent, and participants can achieve various milestones, such as a half marathon after three laps or an ultra marathon after seven or more. Essential gear includes hydration and nutrition supplies, and volunteers are welcomed to support the event. Registration is open until October 11, 2025, with a limited number of spots available. Visit the organization's website for the most recent information.

Race information

4 mi
85 m+
4.366 Mile Loop
Visit the organization's website for the most recent information.
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