Date
Sat, 3 Apr 2027
Start
08:30
Venue
Theatre Brycheiniog, Brecon, Wales LD3 7DW
Brecon, Powys
Countdown
April
The way into the event: a marathon-plus loop with a relaxed 08:30 start and a generous cut-off, so it suits a first mountain ultra.
Key facts
0115-hour cut-off, 23:30 on Saturday
02GPS navigation required
03Entrants must be 18+
Create a free training plan for the Rasus y Bannau 43 km
7-day free trial, no card required
The course
The route
Brecon
Distance43km
Total climb2,029m
StartElevation
0 kmDrag map to rotate41.5 km
Weather
Early-April, Brecon
10°CTypical high
3°CTypical low
-7°CColdest in 20 years
48%Days with rain
Highs around 10°C and lows around 3°C, but it has dropped to -7°C. Rain on 48% of days. Pack for the cold end, not the average.
NASA POWER data, 2006-2025, the week either side of race day
2025 results
Who finishes, and how
#RiderTimeAvg speed
01Lowri Morgan04:53:008.8 km/h
02Emma Williams05:45:077.5 km/h
03Ruth Tucker05:45:387.5 km/h
34
Women finishers
7:41:33
Median time
5.6 km/h
Median speed
Women · 2025 results, as published by the organiser.
How fast could you finish?
Get a prediction based on your recent training
Organiser
Training
Training for the Rasus y Bannau 43 km
We don't do generic plans. We combine deep knowledge of this race's demands with your recent training, then build a plan with you that progresses as you do.
Beina integrates directly with your existing tools to understand your current fitness, and synchronise your planned sessions.
Intervals.icuWhat a Rasus y Bannau 43 km plan targets
Typical sessions
43 km with 2,029 m of climbing
Time on feet and fatigue resistance
Fuelling and pacing for the whole event
What your weeks look like
Typical sessions
Long runs that build time on your feet
Tempo and threshold sessions to hold race pace
Hill reps and vert to prepare the climbs and descents
Back-to-back weekend runs for fatigue resistance
Not a generic schedule
Typical sessions
Built from your current fitness and the time you actually have
Adapts every week as Beina learns how you respond
Syncs your sessions straight to Garmin and Wahoo
One clear next session, never a wall of spreadsheet
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Get your Rasus y Bannau 43 km plan.
7-day free trial, no card required.
Other races at Rasus y Bannau
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