Date
Sat, 7 Nov 2026
Start
08:00
Venue
Georgetown Boys & Girls Club, Merthyr Tydfil
Merthyr Tydfil, Merthyr Tydfil
Countdown
November
A 30-mile trail ultra out of Merthyr Tydfil that brings you home along the Taff Trail. Modest climbing for the distance, but the kit list and cut-off make it a proper day out.
Key facts
01Checkpoint 3 cut-off is 14:00, six hours after the start
02Compulsory kit: waterproofs, torch, whistle, foil blanket, first-aid kit, charged phone
03Five checkpoints, four with food and water; carry at least 1 litre
Create a free training plan for the OTT Ultra
7-day free trial, no card required
The course
The route
Merthyr Tydfil
Distance48km
Total climb1,143m
StartElevation
0 kmDrag map to rotate48.1 km
Weather
Early-November, Merthyr Tydfil
12°CTypical high
7°CTypical low
0°CColdest in 20 years
64%Days with rain
Highs around 12°C and lows around 7°C, but it has dropped to 0°C. Rain on 64% of days. Pack for the cold end, not the average.
NASA POWER data, 2006-2025, the week either side of race day
2023 results
Who finishes, and how
#RiderTimeAvg speed
01Natalie Utting04:55:349.8 km/h
02Sonia Williams05:30:518.8 km/h
03Kat Gregory05:32:558.7 km/h
7
Women finishers
5:38:22
Median time
8.6 km/h
Median speed
Women · 2023 results, as published by the organiser.
How fast could you finish?
Get a prediction based on your recent training
Organiser
Training
Training for the OTT Ultra
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 OTT Ultra plan targets
Typical sessions
48 km with 1,143 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
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
Entries open now
Get your OTT Ultra plan.
7-day free trial, no card required.
More events in November in United Kingdom
Anglesey Trail Half MarathonExpected Early November 2026 · Niwbwrch→The TFG Cheese & Crackers Trail RacesSun, 1 Nov 2026 · Hartington→Wendover Woods Marathon, Half Marathon & 10kSun, 1 Nov 2026 · Aylesbury→Rutland Night10kFri, 6 Nov 2026 · Edith Weston→Allithwaite 8Sat, 7 Nov 2026 · Allithwaite→Beacons Ultra, Beacons Marathon & Beacons Half MarathonSat, 7 Nov 2026 · Brecon→
