Rasus y Bannau
Brecon, United Kingdom • 2-3 May 2026
Event overview
Rasus y Bannau takes place on 2-3 May 2026 in Brecon, following circular mountain routes through the Bannau Brycheiniog (Brecon Beacons) National Park. The event starts and finishes at Theatr Brycheiniog in Brecon town centre. Minimum age is 18. An interactive map and GPS file are provided for the provisional routes.
Distances:
- 100K Ultra - 65 miles / 104 km, +5,100 m ascent
- 75K Ultra - 46.5 miles / 75.5 km, +3,500 m ascent
- Marathon - 26.5 miles / 43 km, +2,000 m ascent
Routes and support
All routes begin with a climb onto the north ridge of Cribyn, then head east to Fan y Big and along a ridgeline to Carn Pica. The marathon route then moves toward Blaen y Glyn and Torpantau, later climbing Corn Du and Pen y Fan before descending back into Brecon. Ultramarathon routes descend to Talybont Reservoir, climb Tor y Foel, pass Craig y Fan Ddu, and continue west over Fan Fawr and Fan Llia. The 75K turns north toward Craig Cerrig Glesiad, while the 100K continues into the Black Mountain, topping Fan Brycheiniog and then traversing additional summits before rejoining the 75K line above Craig Cerrig Glesiad.
Support includes route marking at major junctions, GPS files, checkpoint refreshment stations (9 for 100K, 6 for 75K, 4 for the marathon), a drop bag at CP5 (around 50 km) for ultra entries, mountain safety teams, and emergency first aid cover. There is a compulsory kit list, and participants must be able to navigate with GPS and follow the published route. Visit the organization's website for the most recent information.