Events/North Wales 400

North Wales 400

Ultra
Date
Sat, 28 Aug 2027
Venue
Llandegla, North Wales (loop)
Countdown
August
Distance
410km
Total climb
9,500m

One of the UK Triple Crown, alongside the Highland Trail 550 and the Dales Divide. A self-supported mountain bikepacking race looping Snowdonia and the wild Berwyn from Llandegla. No crew, no prizes, just a dot on a map.

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The course

The route

A rugged off-road loop from Llandegla through Snowdonia and the Berwyn mountains, in two options at roughly 320km or 410km with up to 9,500m of climbing. Surfaces run from rocky singletrack and boggy bridleway to forest track and quiet lane, self-navigated by GPX with no course markings.

Weather

Late-August, Llandegla

18°CTypical high
11°CTypical low
6°CColdest in 20 years
49%Days with rain

Highs around 18°C and lows around 11°C, but it has dropped to 6°C. Rain on 49% of days.

NASA POWER data, 2006-2025, the week either side of race day
2025 results

Who finishes, and how

#RiderTimeAvg speed
01Kerry MacPhee1d11h36m11.5 km/h
02JoJo Blunt2d06h32m7.5 km/h
03Nikki Sommers2d07h07m7.4 km/h
6
Women finishers
2d 12:37:00
Median time
6.8 km/h
Median speed
Women · 2025 results, as published by the organiser.
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Training

Training for the North Wales 400

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.

GarminWahooPolarHammerheadIntervals.icu
What the mountains throw at you
Typical sessions
Up to 9,500m of loaded climbing with no long flat to recover on
Rocky Snowdonia singletrack and boggy Berwyn moorland, where hike-a-bike is normal even for fast riders
At least one full mountain night, self-navigating faint bridleways by GPS
Exposed tops and unforgiving late-August Welsh weather, entirely self-supported
What your weeks look like
Typical sessions
Long Z2 hilly endurance rides off-road, building from 4 to 8 hours with 1,000 to 2,000m of climbing
Back-to-back weekends and one overnight bikepacking trip, learning to ride on tired legs and sleep rough
Night navigation rides and loaded rides on full kit, so darkness and a heavy bike feel normal
Hill repeats, loaded hike-a-bike and lower-body gym work for the steep pushing sections
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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