Tentsmuir Forest 8-hour Challenge
St Andrews, United Kingdom • 18 Oct 2025
Event overview
Tentsmuir Forest 8-hour Challenge is organised by NU Limits Running Ltd on 18 October 2025 at Tentsmuir Forest, Tayport, Fife. The event has a limit of 175 places and the status is open. The route is entirely on trail paths around Tentsmuir Forest with about 85 ft of ascent per 4.366 mile lap. Basecamp is shown on the event GPX map and includes two 6 x 3 metre gazebos for kit storage; the organiser does not accept liability for lost kit. Spectators are welcome. Tentsmuir operates a pay barrier parking system with a day charge of £4.
Race format and logistics
Participants complete as many 4.366 mile loops as possible within an 8-hour time limit. Cutoff rules apply for beginning and completing a final lap. Lap-count classifications are:
- 3 laps = Half Marathon
- 6 laps = Full Marathon
- 7+ laps = Ultra Marathon
Mandatory kit includes sufficient nutrition and hydration (minimum 500 ml fluid per hour and 60–90 g carbohydrates per hour of running), appropriate weather clothing, dry end-of-event clothes, and a mobile phone. Refunds are available up to two months before the event. Event transfers to another event in the same calendar year are allowed up to one month before; participant place transfers are allowed up to one week before. Price listed until 15 October 2025: £41.95 (service fee 4%, minimum 50p). Visit the organization's website for the most recent information.