Date
Sat, 20 Mar 2027
Start
12:30
Venue
Rue Joseph Allanic / Complexe Joseph Lebret, Mesnil-Roc'h, France
Mesnil-Roc'h, Ille-et-Vilaine
Countdown
March
An 80 km that starts after lunch, which means you run into the evening and finish in the dark. Moderate climbing, but a long day on your feet.
Key facts
01Finish cut-off is Sunday 21 March at 01:28 (12h58 maximum)
02Solo entry only
03Born in 2007 or earlier
Create a free training plan for the Trail des Vallées 80 km
7-day free trial, no card required
The course
The route
Mesnil-Roc'h
Distance80km
Total climb2,200m
StartElevation
0 kmDrag map to rotate63.8 km
Weather
Mid-March, Mesnil-Roc'h
12°CTypical high
5°CTypical low
-2°CColdest in 20 years
32%Days with rain
Highs around 12°C and lows around 5°C, but it has dropped to -2°C. Rain on 32% of days. Pack for the cold end, not the average.
NASA POWER data, 2006-2025, the week either side of race day
Results
Course verified. Results not yet available.
Organiser
OrganiserAssociation Saint Pierre Nature
Websitetraildesvallees.com
Instagram@trail.des.vallees
Running since2017
Training
Training for the Trail des Vallées 80 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 Trail des Vallées 80 km plan targets
Typical sessions
80 km with 2,200 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
Entries open now
Get your Trail des Vallées 80 km plan.
7-day free trial, no card required.
Other races at Trail des Vallées
More events in March in France
Black Mountain TrailExpected Early March 2027 · Saint-Amans-Soult→Black Mountain TrailExpected Early March 2027 · Saint-Amans-Soult→Ceven'TrailSat, 6 Mar 2027 · Le Vigan→L'Ultra BaumeExpected Early March 2027 · Cuges-les-Pins→La MassingienneSat, 6 Mar 2027 · Massingy→Marathon de la ToureilleSat, 6 Mar 2027 · Le Vigan→
