DateExpected
Mid April 2027
Based on past editions. We'll confirm when the organiser announces.
Venue
Foel Drygarn near Crymych to Whitesands, St David’s, Pembrokeshire
St Davids, Pembrokeshire
Countdown
April
A self-navigated run across Pembrokeshire from Foel Drygarn to the sea at Whitesands. You get 16 hours to link the checkpoints and find your own way there.
Key facts
01Compulsory kit and a completed disclaimer form are required
0216-hour finish cut-off
03Self-navigated route with compulsory checkpoints; dogs not permitted
Create a free training plan for the The Marreg
7-day free trial, no card required
The course
The route
St Davids
Distance85km
StartElevation
0 kmDrag map to rotate75.3 km
Weather
Mid-April, St Davids
11°CTypical high
7°CTypical low
2°CColdest in 20 years
35%Days with rain
Highs around 11°C and lows around 7°C, but it has dropped to 2°C. Rain on 35% of days.
NASA POWER data, 2006-2025, the week either side of race day
Results
Course verified. Results not yet available.
Organiser
Training
Training for the The Marreg
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 The Marreg plan targets
Typical sessions
85 km
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 The Marreg plan.
7-day free trial, no card required.
More events in April in United Kingdom
Rasus y BannauExpected Early April 2027 · Brecon→Allendale ChallengeExpected Early April 2027 · Hexham→Chichester 100 SportiveExpected Early April 2027 · Fishbourne→Lakes TraverseExpected Early April 2027 · Shap→Northern TraverseSat, 3 Apr 2027 · St Bees Seafront→The Wetherby Wheel - 60KM & 100KM Cycle SportiveSat, 3 Apr 2027 · Leeds→
