OTT Marathon

Dol-y-Gaer, United Kingdom • 17 May 2025

The OTT Marathon & 10 Mile Race takes place in the scenic Brecon Beacons, starting and finishing at Parkwood Dolygaer, Merthyr Tydfil. The marathon covers approximately 26.2 miles on a mountainous looped course featuring significant climbs, including Pen Y Fan, Fan Y Big, and Tor y Foel, with three checkpoints and a six-hour cutoff at 20.5 miles. The 10-mile race shares the initial section before diverting at the first checkpoint back to the finish. Participants enjoy stunning views and well-stocked aid stations. The event emphasizes safety with compulsory kit requirements and offers finishers commemorative items like a coaster and buff. Visit the organization's website for the most recent information.

Race information

26 mi
Marathon
10 mi
10 Miles
Visit the organization's website for the most recent information.
Trail runs nearby

The VOGUM 2025 is a thrilling 40-mile trail running challenge along the scenic Wales Coast Path, stretching from Porthcawl to Penarth. Set against the backdrop of the Glamorgan Heritage Coast, participants will experience stunning views of golden beaches, dramatic cliffs, and historical sites like O..

The Midnight Mountain Marathon is a distinctive trail running event held in the scenic Brecon Beacons (Bannau Brycheiniog) in Wales. Scheduled for June 7, 2025, it offers four race options: a full marathon, a half marathon, and Bergen versions of both, where runners carry a 45lb backpack. The marath..

UTMB Index

The True Grit Trail Half Marathon is an exhilarating running event set to take place on June 14, 2025, at the Bridgend Miniature Railway Centre. Participants will tackle a challenging 13.1-mile route featuring diverse terrain, including steep hills, a scenic quarry section, and technical downhill tr..

Offa's Dyke 15 is a celebrated off-road running event held in Hay-on-Wye, Hereford, UK. Originally popular from 1977 to 2001, the race was relaunched in 2015 with the help of the original Race Director. The event features a challenging 15-mile course along the scenic Offa's Dyke path, attracting run..

Limitless Trails presents the Black Mountains Ultramarathon event on 14th June 2025, set in the scenic Black Mountains within the Brecon Beacons National Park. The event offers multiple distances: 50 miles (80 km), 32 miles (50 km), a marathon (27 miles/43.4 km), and a half marathon (13 miles/21 km)..

The Epona 100 is a challenging 100-mile ultramarathon held in Abergavenny, featuring a demanding 17,000 feet of elevation gain. The course offers a scenic mix of iconic trails including Offa’s Dyke, Cambrian Way, and Beacons Way, providing runners with stunning mountain passes and diverse terrain—80..