Rasus y Bannau

MAY
2-3
2026
Three epic mountain races from Brecon across the Brecon Beacons, with sustained ridgeline climbs, dramatic summits and rugged technical trails. Marathon, 75K and 100K options include checkpoints, drop bag support and GPS waymarked routes.
2-3 May 2026
100 kilometers 75 kilometers 43 kilometers

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Rasus y Bannau - Brecon

Rasus y Bannau are three long-distance mountain races that start and finish in Brecon. The races follow circular routes through the Bannau Brycheiniog (Brecon Beacons) National Park, with waymarked junctions and a published GPS trace. The event base is Theatr Brycheiniog, Canal Wharf, Brecon, Powys LD3 7EW. Minimum age to enter is 18.

Distances

  • 100K Ultra - 65 miles / 104 km, +5,100 m ascent
  • 75K Ultra Trail - 46.5 miles / 75.5 km, +3,500 m ascent
  • Marathon - 26.5 miles / 43 km, +2,000 m ascent

Route, checkpoints and logistics

All routes start at the Theatre in Brecon town centre and climb the north ridge of Cribyn, then head east to Fan y Big and along a ridgeline toward Carn Pica. The marathon route moves toward Blaen y Glyn and Torpantau and then up Corn Du and Pen y Fan before descending to Brecon. The two ultra routes descend to Talybont Reservoir, pass Tor y Foel and follow the Cambrian Way and Beacons Way over Fan Fawr, Fan Llia and other high ridges; the 100K continues into the Black Mountain and crosses several summits before rejoining the 75K line above Craig Cerrig Gleisiad.

There are checkpoints on course (9 for the 100K, 6 for the 75K, 4 for the marathon) offering food and drinks. A drop bag service is provided at CP5 (about 50 km) for ultra distances. Participants must carry compulsory kit, be able to navigate with GPS and route markings, and be prepared for mountain conditions. Parking is available in pay-and-display car parks outside the Theatre. Visit the organization's website for the most recent information.

100 km
100 Km
75 km
75km Ultra Trail
43 km
Marathon

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