Tentsmuir Forest 8-hour Challenge
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Event overview
The Tentsmuir Forest 8-hour Challenge is organised by NU Limits Running and takes place at Tentsmuir Forest and Beach in Tayport, Fife on 24 October 2026. Participants attempt to complete as many laps as possible of a measured trail loop within an 8-hour time limit. Each loop is 4.366 miles and includes about 20 ft of ascent per lap. Electronic wristbands (HuTags on velcro straps) record lap starts and finishes; timing is managed with a Basecamp timing monitor and results are finalised with the timing partner.
Format, course and practical details
- 3 laps = Half Marathon
- 6 laps = Full Marathon
- 7+ laps = Ultra Marathon
The route is on trail paths around Tentsmuir Forest; a GPX file and an indicated basecamp location (green pin on the GPX map) are provided. Basecamp offers two 6 x 3 m gazebos for kit storage; organisers do not accept liability for lost kit. Spectators are welcome at basecamp.
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 clothes for after the event, and a mobile phone. Parking at Tentsmuir uses a coin/card pay barrier; the stated day charge is £4. Total places are listed as 250 and the event status is open. Prices shown include an entry fee of £44.95 until 21 Oct 2026 and a service fee (4%, minimum 50p). Visit the organization's website for the most recent information.
