Tentsmuir Forest 8-hour Challenge

Tentsmuir Forest 8-hour Challenge : 18 October 2025

This event, organised by NU Limits Running Ltd at Tentsmuir Forest (Tayport, Fife), asks participants to complete as many 4.366 mile loops as possible within an 8-hour time limit. The route uses trail paths around Tentsmuir Forest and includes about 85 ft of ascent per lap. Runners will be provided with a lap-tracking method and laps will be recorded by the event timing system. Basecamp is shown on the event GPX map and can be used for kit storage; two 6 x 3 metre gazebos will be available. Spectators are welcome. Tentsmuir operates a coin/card pay barrier for parking; the stated charge is £4 for the day.

Distances, kit and entry

• 3 laps = Half Marathon
• 6 laps = Full Marathon
• 7+ laps = Ultra Marathon

Mandatory kit requirements include sufficient nutrition and hydration (minimum 500 ml fluid per hour and 60–90 g carbohydrates per hour), appropriate clothing for the weather, dry clothes for after the event, and a mobile phone. The event lists a total of 175 places. Price shown until 15 Oct 2025: £41.95. A service fee of 4% (minimum 50p) applies per sign-up. Refunds are available up to two months before the 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. Visit the organization's website for the most recent information.

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