X-Alpine is the 141km ultra trail at Trail Verbier St-Bernard by UTMB 2026 (Verbier, Switzerland). The race starts on July 10, 2026.
Hold a steady pace and save energy for every section.
The course climbs 10400m+. With 74m/km of climbing, the course is exceptionally steep, with long hiking-grade sections. By gradient, 45% of the distance is uphill, 44% downhill and 12% flat. The longest climb runs 17.8km at an average 12.1% grade (2145m of vertical). The longest descent runs 19.7km at an average 10.4% grade (2044m of vertical). The steepest climb averages 47.0% over 0.4km. The steepest descent drops at 46.4% over 0.3km. Surface: 69% trail, 12% technical, 11% road, and 7% smooth. Flat-equivalent effort: 241.6 FlatKM.
The highest summit on the course is Savoleyres (2344m), 12.6km from the start.
Trekking poles are strongly recommended: about 20.6km of the course is steep enough for them to pay off.
Quad damage risk is high (index 75 of 100), with 45% of the load in the first half: 3 critical descents, the last of them run on already damaged legs. Downhill-specific preparation and a controlled early pace pay off here.
On race day, start temperatures have historically ranged from 10°C to 19°C, with around 6°C at the highest point; the chance of precipitation is about 46%. Heavy rain of 10.0mm or more falls on about 6% of days around this date.
228 finishers completed the 2026 edition. Men's winner: Bastien Fleury (France) in 19:42:29. Women's winner: Hélène Dassy (Belgium) in 23:17:31.
This page has the full results and splits, a pacing and nutrition planner, a gradient matrix, an interactive elevation profile and historical weather for X-Alpine.
Other distances of Trail Verbier St-Bernard by UTMB 2026X-Traversee (77.0km)·X-Plore (27.0km)
Other editions of X-Alpine2027·2025
Official websitetvsb.utmb.world