Black Beacon Mountain Trail Races

Hay-on-Wye, United Kingdom • 31-2 Oct-Nov 2025

Event overview

The Black Beacon Mountain Races take place 31 October to 2 November 2025 and cross the Black Mountains and Bannau Brycheiniog (Brecon Beacons) National Parks in Wales. Four linear race distances are offered:

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

Entry minimum age is 18. Entry fees are published per distance. Finishers receive a medal and race buff; the entry fee includes checkpoints with refreshments, first aid cover, GPS files, and timing.

Routes, logistics and requirements

The 100 mile is an out-and-back traverse between Hay-on-Wye and Pontneddfechan, crossing 44 summits. The 50 mile and 50 km run south-north across the Bannau Brycheiniog range; the 21 mile starts at Llangynidir and follows a high ridgeline back toward Hay-on-Wye. Checkpoint numbers are: 13 for the 100, 6 for the 50, 4 for the Ultra Bach, and 3 for the trail race. Drop bag provision is available (two for the 100, one for the 50).

Navigation: the 50 mile, 50 km and trail races are marked at major junctions and rely on a GPS trace plus markers and map or compass. The 100 mile route is unmarked for the first half and requires following the published GPS trace. A compulsory kit list applies and mountain experience is required; entry to the 100 mile requires prior completion of a similar mountain 50 mile event. Coach transport options are provided between finish and start locations, and a Sunday return coach option is available. Visit the organization's website for the most recent information.

Race information

UTMB 50K UTMB 100K UTMB 100M
100 mi
7500 m+
Black Beacon 100 - 100 Miles With +7500m Ascent
50 mi
3750 m+
Black Beacon 50 - 50 Miles With +3750 Ascent
50 km
2200 m+
Black Beacon Ultra Bach - 50 Km With +2200m Ascent
21 mi
1200 m+
Black Beacon Trail Race - 21 Miles With +1200m Ascent
Visit the organization's website for the most recent information.
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