Tenacious Ten Endurance Challenge

Talgarth, United Kingdom • 9 May 2026

Tenacious Ten Endurance Challenge takes place on Mynydd Troed, Pengenfford Common near Talgarth, Powys (LD3 0EY). This intense, all-day loop race tests endurance with a single 10-hour format and a rolling loop of about 4 miles (roughly 6.9 km) per lap, featuring steep climbs and technical downhills and scenic open common trails. The course is fully marked, with two clip stations and laminated cards to track each lap. Runners can choose the direction after the first lap. The event is open to solo entrants, pairs and teams of four, with a Refuel Zone, mandatory kit, and post-race facilities and prizes. Visit the organization's website for the most recent information.

Race information

3 mi
10 Hour 3.2-Mile Loop Race
Visit the organization's website for the most recent information.
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