Date
Sat, 22 May 2027
Start
08:00
Venue
Passy Plaine-Joux, 321 chemin des Parchets, 74190 Passy
Passy, Haute-Savoie
Countdown
May
A 12-hour trail run where you decide how the day goes: pick a marked loop, repeat it or switch, and run solo or with a relay team of up to four.
Key facts
01Minimum age 18; non-licensed runners need an FFA Pass Prévention Santé (PPS)
02Relay teams of 2 to 4 runners, or enter solo
03Everyone starts together at 08:00 and the event finishes at 20:00
Create a free training plan for the La Douze – Mont-Blanc Passy
7-day free trial, no card required
The course
One lap, on repeat
Passy · one lap
Duration12hr
Start · finishOne lap · elevation
0 kmDrag map to rotate3.6 km
Weather
Late-May, Passy
13°CTypical high
3°CTypical low
-6°CColdest in 20 years
60%Days with rain
Highs around 13°C and lows around 3°C, but it has dropped to -6°C. Rain on 60% of days. Pack for the cold end, not the average.
NASA POWER data, 2006-2025, the week either side of race day
2026 results
Who finishes, and how
#RiderTimeGap
01eva BAGLIN02:48:44
02jeremy KUCZMA03:08:41
03denis PINCET03:11:33
180
Finishers
11:26:58
Median time
Overall · 2026 results, as published by the organiser.
How fast could you finish?
Get a prediction based on your recent training
Organiser
OrganiserAssociation du T24 (La Douze – T24)
Websiteladouze-trail.com
Instagram@ladouze.trail
Running since2026
Training
Training for the La Douze – Mont-Blanc Passy
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 La Douze – Mont-Blanc Passy plan targets
Typical sessions
A sustained 12hr effort
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 La Douze – Mont-Blanc Passy plan.
7-day free trial, no card required.
More events in May in France
Ardèche Trail La Voie RomaineSat, 1 May 2027 · Désaignes→Bagnères Classic TrailExpected Early May 2027 · Bagnères-de-Bigorre→Trail du BenouExpected Early May 2027 · Bielle→Trail du Mont ChauveExpected Early May 2027 · Noyelles-Godault→Trail du MourtisExpected Early May 2027 · Boutx→Dézic'n'TrailExpected Early May 2027 · Saint-Didier-en-Velay→
