Come explore the Chapieux Valley and its mountains during this trail race.
Description
The TPSB, scheduled for September 26–27, 2026, is the last high-altitude trail race of the year. The program features a range of events in the heart of the wild mountains, from the Km Vertical to the Ultra. This trail race is considered by purists of the sport to be one of the most beautiful mountain trail races in France: authentic, with a touch of technical challenge and rustic charm, all in a simple setting.
The Schedule
Saturday, September 26:
+ 10 km of the Vallée des Glaciers (360 m elevation gain) – Start at 10:30 a.m.
A quick round trip to the area known as “La Ville des Glaciers” to explore the valley and enjoy a magnificent view of the Aiguille des Glaciers. A roughly 10 km course with 360 m of elevation gain, following the Glaciers Torrent—perfect for speed enthusiasts or those looking to explore the valley.
+ Verticale du Bonhomme: 5 km, 900 m of elevation gain. Start at 10:45 a.m.
A steep climb of about 5 km and 900 m elevation gain to reach the Refuge du Bonhomme at 2,443 m. Free descent.
+ Technitrail des Glaciers (TDG) – 35 km, 2,700 m elevation gain. Start at 8:30 a.m.
This TPS route lets you explore a significant portion of the “Thomas Roques” high-altitude technical trail, which stretches from the Tête Nord des Fours to the Col de la Seigne and overlooks the Glaciers Valley.
Sunday, September 28:
+ TPSB 68 km, 4,000 m elevation gain Start at 6:00 a.m.
THE GATES OF PARADISE! With this “expert” route set in the heart of the wild mountains “far from civilization,” TPS invites you to discover the famous “Colle di Bassa Serra,” rising to an altitude of 2,738 meters—a veritable wall in the heart of a glacial paradise that overlooks the Col des Chavannes in the distance and offers breathtaking views of the nearby Mont Blanc massif. Located in an extremely remote area, it is a true gem. You’ll also explore the Mont Fortin ridge, which offers spectacular panoramic views, not to mention the Col de l’Ouillon and the Col de la Forclaz.
+ Mont Blanc Trail (TMB) – 43 km, 2,800 m elevation gain. Start at 8:00 a.m.
The Mont Blanc Trail is a high-altitude mountain trail featuring four passes over 2,500 meters in elevation to cross, offering breathtaking views of Mont Blanc and the Aiguille des Glaciers.
+ Grande Ecaille Trail (TGC)—21 km, 1,300 m elevation gain. Start at 8:30 a.m.
A short, fast loop of approximately 21 km and 1,300 m elevation gain, passing through the Grande Ecaille (2,751 m)—an iconic pass in the Vallée des Glaciers—with an impressive view of the Aiguille des Glaciers.
And finally, for the most daring:
+ TPSB ULTRA 103 km (TPSB + TDG)
Participate in the 35-km Technitrail des Glaciers on Saturday and the 68-km TPSB on Sunday; a cumulative time ranking will be established. Overall and category winners (M/W) will receive awards.
Online registration is open until September 23, 2026. No on-site registration except for the 10 km and the Vertical race.
Open to runners aged 20 and older.
Opening period
From Saturday 26 to Sunday 27 September 2026.
Capacity and customer types
- Pets allowed
- No
Practical information
Contact and information
Location