Tenacious Ten Hour Endurance Challenge
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The Tenacious Ten Hour Endurance Challenge on 9 May 2026 in the Black Mountains of Wales is a test of endurance and determination. Participants run as many laps of a strenuous and technical 2.6 mile loop as they can in 10 hours, on a course that takes on Mynydd Troed. Starting at Pengenfford Common at…