Date
Sun, 12 Sept 2027
Start
06:30
Venue
Bourg de L'Orbrie, Vendée, France
L'Orbrie, Vendée
Countdown
September
The big one of the Mervent day: a 52 km single loop on foot, the Boucle des Verreries. Over 1,100 m of climbing spread across the distance, so it's long rather than brutal.
Create a free training plan for the Bol d'Air de la Forêt de Mervent 52 km
7-day free trial, no card required
The course
The route
L'Orbrie
Distance52km
Total climb1,139m
StartElevation
0 kmDrag map to rotate47.4 km
Weather
Mid-September, L'Orbrie
23°CTypical high
12°CTypical low
5°CColdest in 20 years
29%Days with rain
Highs around 23°C and lows around 12°C, but it has dropped to 5°C. Rain on 29% of days.
NASA POWER data, 2006-2025, the week either side of race day
2026 results
Who finishes, and how
#RiderTimeAvg speed
01LEVRON Sandrine05:03:0810.4 km/h
02ALLARD Chloe05:07:5710.2 km/h
03PARENT Fanny05:24:029.7 km/h
15
Women finishers
5:50:40
Median time
9.0 km/h
Median speed
Women · 2026 results, as published by the organiser.
How fast could you finish?
Get a prediction based on your recent training
Organiser
Training
Training for the Bol d'Air de la Forêt de Mervent 52 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 Bol d'Air de la Forêt de Mervent 52 km plan targets
Typical sessions
52 km with 1,139 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 Bol d'Air de la Forêt de Mervent 52 km plan.
7-day free trial, no card required.
Other races at Bol d'Air de la Forêt de Mervent
More events in September in France
Alps DivideExpected Early September 2027 · Alpine traverse → Menton→L'Échappée MICHELIN Paris-ClermontExpected Early September 2027 · Clermont-Ferrand→Le Trail du GraalExpected Early September 2027 · Néant-sur-Yvel→Saint-Jeoire Trail FestivalExpected Early September 2027 · Saint-Jeoire→Trail de la MeijeExpected Early September 2027 · Commensacq→Ultra Trail Haut-Koenigsbourg®Expected Early September 2027 · Kintzheim→
