Rasus y Bannau

APR
2-3
2027
Three long distance mountain races around the Bannau Brycheiniog National Park start and finish in Brecon. Distances include a 100 km ultra, a 40 mile ultra and a marathon, with marked routes, checkpoints and GPS tracking.
2-3 Apr 2027
100 kilometers 40 miles 27 miles

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Rasus y Bannau

Rasus y Bannau comprises three long distance mountain races that follow a circular route around the Bannau Brycheiniog (Brecon Beacons) National Park. The events start and finish in Brecon and are organised by Run Walk Crawl.

The race distances are:

  • 100 km Ultra: approx 104 km, +5100 m ascent
  • 40 mile Ultra Trail: approx 65 km, +2850 m ascent
  • Marathon: approx 43 km, +2000 m ascent

All races begin in Brecon town centre and climb onto the north ridge of Cribyn. Runners proceed east to Fan y Big and follow a ridgeline toward Carn Pica. The Marathon and 40 mile courses turn toward Blaen y Glyn and Torpantau. The 100 km route descends to Talybont Reservoir and climbs Tor y Foel, then passes through the Blaen y Glyn waterfall area and up onto Craig y Fan Ddu where the Cambrian Way and Beacons Way meet.

From Torpantau all routes go through the Taf Fechan Forest, cross the old dam and climb to the ridgeline of Cefn Cul and Craig Gwaun Taf before dropping to Pont ar Daf. The Marathon then climbs Corn Du and Pen y Fan and descends back into Brecon. The two Ultra routes continue west over Fan Fawr and Fan Llia, with the 40 mile route turning north toward Craig Cerrig Gleisiad and the 100 km route extending into the Black Mountain to Fan Brycheiniog and beyond before rejoining the 40 mile line above Craig Cerrig Gleisiad and returning toward Pen y Fan and Brecon.

Entry includes a finishers medal, emergency first aid cover, GPS tracking, electronic timing, checkpoints with refreshments, route marking, mountain safety teams, a GPS file, race photography downloads, and one drop bag at the 40 mile checkpoint for the 100 km race. Visit the organization's website for the most recent information.

100 km
100 Km Ultra
40 mi
40 Mile Ultra Trail
27 mi
Marathon
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