Grand Trail du Lac 74 km 2026
Also known as: GTL · Grand Trail du Lac du Bourget · Lac du Bourget · Le Bourget-du-Lac
A full loop of Lac du Bourget in Savoie, France's largest natural lake, from Le Bourget-du-Lac. It starts by headlamp along the shore, takes in the Chambotte viewpoint and ridge paths, and late in the race passes beneath the Dent du Chat. About 70% of the course is singletrack.
3,580 m of climbing over 74 km (48 m per km).
Estimate your finish from your ITRA index
Estimate (no finisher data for this race)
Enter your ITRA performance index to get an estimated finish time, aid-station splits and cutoff margins. This race has no finisher ITRA data, so it uses the transfer model: your predictions for the 205 races that do have finisher data, scaled by distance and elevation gain (km-effort) — the same calculation as the TRAIL STATUS app. Nothing is saved or sent.
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Predict in detail from my Strava trainingOverview
- Date
- Sun, 18 Oct 2026
- Start
- 05:00
- Location
- France
- Distance
- 74 km
- Elevation gain
- 3,580 m
- Time limit
- 15h 15m
- ITRA
- 50M
- Official website
- www.grandtraildulac.com/75km-solo
Elevation profile
No elevation data yet.
Aid stations and cutoffs
| # | Distance | Aid station | Segment | Cutoff |
|---|---|---|---|---|
| 1 | 21 km | Ravito 1 Belvédère de la Chambotte | 21 km | Day 1 09:004h |
| 2 | 37 km | Aid 2Ravito 2 Portout（温かい食事） | 16 km | Day 1 12:457h 45m |
| 3 | 51 km | Aid 3Ravito 3 Ontex（温かい食事） | 14 km | — |
| 4 | 58 km | Aid 4Ravito 4 Chapelle du Mont du Chat（距離は概算） | 7 km | Day 1 16:3011h 30m |
| 5 | 68 km | Ravito 5 Relais de l'Aigle | 10 km | Day 1 18:4513h 45m |
| F | 74 km | FINISH Le Bourget-du-Lac | 6 km | Day 1 20:1515h 15m |
The small figure under each cutoff is the time from the start. Day 1 is the day of the start.
Other races
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- Marathon du Mont-Blanc 42km (Chamonix, France) 2026Sun, 28 Jun 2026 · France · 42 km
- Marathon du Mont-Blanc 42km (Chamonix, France) 2027Sun, 27 Jun 2027 · France · 42 km
From your training log, TRAIL STATUS estimates your finish time, aid-station splits and cutoff margins for this race.
Predict my raceCompiled from each race's official information. Details can change, so always check the race's official website for the latest. Spotted a mistake? Please tell us through the contact form.
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