DateExpected
Early June 2027
Based on past editions. We'll confirm when the organiser announces.
Venue
Bulwark Community Centre, Bulwark, Chepstow, Monmouthshire, Wales
Chepstow, Monmouthshire
Countdown
June
Ride the length of Wales to Menai Bridge, sleep, then ride all the way back. Two 300 km days with a night in between, and 8,853 m of climbing along the way.
Key facts
01Two legs: 310 km out to Menai Bridge, 313 km back
02A sleep stop sits between the legs; the return leg starts at 06:00
03Overall event window is 45h52 for the full 624 km
Create a free training plan for the Anglesey & Back 300+300
7-day free trial, no card required
The course
The route
Chepstow
Distance624km
Total climb8,853m
StartElevation
0 kmDrag map to rotate573.9 km
Weather
Early-June, Chepstow
18°CTypical high
10°CTypical low
4°CColdest in 20 years
40%Days with rain
Highs around 18°C and lows around 10°C, but it has dropped to 4°C. Rain on 40% of days.
NASA POWER data, 2006-2025, the week either side of race day
Results
Course verified. Results not yet available.
Organiser
OrganiserWill Pomeroy
Websitepedalution.co.uk
Training
Training for the Anglesey & Back 300+300
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 Anglesey & Back 300+300 plan targets
Typical sessions
624 km with 8,853 m of climbing
Endurance and fatigue resistance over the full distance
Fuelling and pacing for the whole event
What your weeks look like
Typical sessions
Long endurance rides building toward the full distance
Threshold and sweet-spot work for sustained power
Sustained climbing repeats on real gradients
Group rides for drafting and bunch-riding skills
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 Anglesey & Back 300+300 plan.
7-day free trial, no card required.
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