OTT Ultra Marathon

Merthyr Tydfil, United Kingdom • 1 Nov 2025

The OTT Ultra Marathon is a 30-mile trail race set in the scenic Brecon Beacons, starting from Merthyr Tydfil. The course features technical trails, including a climb to Pen y Fan, the highest peak in South Wales, and passes through reservoirs and forest tracks, offering stunning views. The race includes five checkpoints with water and food supplies, and a 14-hour cutoff. Designed for experienced ultra runners, it challenges participants with significant elevation gain and technical terrain. The event promotes outdoor endurance and adventure, attracting runners seeking a demanding yet rewarding trail experience in Wales. Visit the organization's website for the most recent information.

Race information

30 mi
1143 m+
30 Miles
Visit the organization's website for the most recent information.
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