DateExpected
Mid September 2027
Based on past editions. We'll confirm when the organiser announces.
Venue
Domaine du Tornet, Lac du Tornet, La Balme-de-Sillingy
Dalmaz, Haute-Savoie
Countdown
September
Half a day of running loops round a flat 1.4 km lakeside path. A big step up from a normal race, without committing to the full 24.
Key facts
01Timed laps: the most laps in 12 hours wins
02Teams can run together or take turns in a relay
Create a free training plan for the 24 heures de la Balme 12 hours
7-day free trial, no card required
The course
One lap, on repeat
Dalmaz · one lap
Duration12hr
Start · finishOne lap · elevation
0 kmDrag map to rotate1.4 km
Weather
Mid-September, Dalmaz
21°CTypical high
12°CTypical low
2°CColdest in 20 years
39%Days with rain
4 hIn the dark
Highs around 21°C and lows around 12°C, but it has dropped to 2°C. Rain on 39% 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 24 heures de la Balme 12 hours
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 24 heures de la Balme 12 hours 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
Steady mileage with one or two quality days a week
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 24 heures de la Balme 12 hours plan.
7-day free trial, no card required.
Other races at 24 heures de la Balme
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→
