DateExpected
Late August 2027
Based on past editions. We'll confirm when the organiser announces.
Venue
Place du Triangle de l’Amitié, Chamonix, France
Chamonix-Mont-Blanc, Haute-Savoie
Countdown
August
A 300 km team loop around Mont-Blanc with no marked course. You and your partners navigate it yourselves, and you have six days to get home to Chamonix.
Key facts
01Teams of 2 or 3 must stay together the whole way
02Entry is by application showing mountain experience and technical skills
03151-hour cut-off; the route is unmarked and self-navigated
Create a free training plan for the PTL (La Petite Trotte à Léon)
7-day free trial, no card required
The course
The route
Chamonix-Mont-Blanc
Distance300km
Total climb25,000m
StartElevation
0 kmDrag map to rotate223.5 km
Weather
Late-August, Chamonix-Mont-Blanc
18°CTypical high
8°CTypical low
0°CColdest in 20 years
40%Days with rain
Highs around 18°C and lows around 8°C, but it has dropped to 0°C. Rain on 40% 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
OrganiserUTMB Group, in collaboration with Les Amis de l’UTMB
Websitemontblanc.utmb.world
Instagram@utmbmontblanc
Running since2008
Training
Training for the PTL (La Petite Trotte à Léon)
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 PTL (La Petite Trotte à Léon) plan targets
Typical sessions
300 km with 25,000 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 PTL (La Petite Trotte à Léon) plan.
7-day free trial, no card required.
More events in August in France
A Corsa di l’OrienteExpected Early August 2027 · Haute-Corse→La GévaudaneExpected Early August 2027 · Saugues→Les Courses du Jura AlsacienSun, 1 Aug 2027 · Ferrette→Les Courses du Jura AlsacienSun, 1 Aug 2027 · Ferrette→Trail de l'EtendardExpected Early August 2027 · Le Bourg-d’Oisans and Saint-Sorlin-d’Arves→Trail du Pays du ChâtaignierExpected Early August 2027 · Villefranche-du-Périgord→
