Wild Glacier Marathon is the 41.0km trail race at Wildstrubel by UTMB 2027 (Lenk, Switzerland). The race starts on September 10, 2027 at 08:00 AM. It starts in Lenk and finishes in Crans-Montana. The time limit is 10 h 30 min.
Run easy on the first mountain, then go all out on the second.
The course climbs 2500m+. With 61m/km of climbing, this is a true mountain course with sustained climbs and descents. By gradient, 40% of the distance is uphill, 38% downhill and 22% flat. The longest climb runs 10.2km at an average 8.0% grade (812m of vertical). The longest descent runs 9.6km at an average 13.6% grade (1298m of vertical). The steepest climb averages 41.1% over 0.3km. The steepest descent drops at 30.3% over 0.2km. Surface: 58% trail, 21% technical, 9% smooth, and 7% road. Flat-equivalent effort: 64.7 FlatKM.
Trekking poles are worth taking: about 7.2km of the course favours them.
Quad damage risk is moderate (index 26 of 100), with 25% of the load in the first half: 2 descents deserve a plan and a couple of downhill sessions before race day.
On race day, start temperatures have historically ranged from 7°C to 15°C, with around 7°C at the highest point; the chance of precipitation is about 48%. Heavy rain of 10.0mm or more falls on about 10% of days around this date.
This page has a pacing and nutrition planner, a gradient matrix, an interactive elevation profile and historical weather for Wild Glacier Marathon.
Other distances of Wildstrubel by UTMB 2027Wild 110 (113km)·Wild 70 (72.0km)·Wild 55 (55.0km)·Wild 25 (26.0km)·Wild 10 (10.0km)
Official websitewildstrubel.utmb.world