Tentsmuir Forest 8-hour Challenge

OCT
24
2026
Eight hour trail challenge at Tentsmuir Forest on 24 Oct 2026 where runners complete as many 4.366 mile laps as possible with wristband lap tracking.
Sat 24 Oct 2026
Half Marathon (3 Laps) Full Marathon (6 Laps) Ultra Marathon (7+ Laps) 8-Hour Tentsmuir Challeng...

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Tentsmuir Forest 8-hour Challenge - 24 Oct 2026

This is an 8-hour loop event held on trail paths around Tentsmuir Forest. Participants complete as many 4.366 mile laps as possible within the time limit. Each lap includes approximately 20 ft of ascent. Electronic wristbands record the start and finish of each lap and log lap times to the event timing system.

Distance benchmarks

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

Timing and race procedure include a cutoff for beginning a final lap and a cutoff for final lap completion. The timing system uses HuTags on velcro straps worn on the wrist; tags must remain uncovered and runners should avoid congregating at the start line to prevent false readings. On finishing, runners check out at Basecamp, return timing tags, receive a lap breakdown and a finisher bag.

Basecamp is indicated on the event GPX map and can be used for kit storage. Two 6 x 3 meter gazebos will be available; organisers do not accept liability for lost kit. Spectators are welcome at Basecamp. Parking at Tentsmuir is via a pay barrier and is charged at £4 for the day.

Mandatory kit includes a minimum 1500 ml fluid supply (refills available), 60–90 g carbohydrates per hour of running, appropriate weather clothing, dry clothes for after the event, and a mobile phone.

Entry information notes a price of £44.95 until 21 Oct 2026 and a total of 250 places. Refunds and transfers follow event policies based on time before the event. Visit the organization's website for the most recent information.

31 mi
Ultra Marathon (7+ Laps)
26 mi
Full Marathon (6 Laps)
13 mi
Half Marathon (3 Laps)
8-Hour Tentsmuir Challenge
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