Black Beacon Mountain Trail Races

Event overview

The Black Beacon Mountain Races run from 31 October to 2 November 2025 and cross the Bannau Brycheiniog (Brecon Beacons) and Black Mountains in South Wales. The event offers linear, long distance mountain trail races with marked sections and GPS traces provided. Minimum age for entry is 18.

Race distances and routes

• Black Beacon 100 - 100 miles, +7500 m ascent.
• Black Beacon 50 - 50 miles, +3750 m ascent.
• Black Beacon Ultra Bach - 50 km, +2200 m ascent.
• Black Beacon Trail Race - 21 miles, +1200 m ascent.

The 100 mile race is an out-and-back from Hay-on-Wye to Pontneddfechan and returns, crossing 44 summits. The 50 mile and 50 km routes cross the Bannau Brycheiniog from Pontneddfechan northwards and include ridgeline sections and reservoir descents. The trail race starts in Llangynidir and joins the ultra routes toward Hay-on-Wye.

Logistics and requirements

Checkpoints: 13 for the 100, 6 for the 50, 4 for the 50 km, and 3 for the 21 mile race; they provide refreshments and water. Drop bags: 2 for the 100 mile runners and 1 for the 50 mile runners. The 50 mile, 50 km and trail races are waymarked at major junctions; the 100 mile is unmarked for the first 50 miles and uses a GPS trace. A compulsory kit list applies and map or backup GPS is required. Entry fees are listed per distance. Visit the organization's website for the most recent information.

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