Fontenais, Switzerland · Saturday, April 17, 2027

Fixed Distance 50K

Les Courses du Mont-Terrible - Trail dOutremont

171 days away

50 km Distance

2,490 m Climbing

6.2 Grit · Hardcore

47.4029° N, 7.0811° E © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 50 m / km Mountain. Significant climbing. Steep sections will require power hiking.

Time limit 10 hours 12:00 min/km average. Comfortable. Sustained running. Long aid-station stops will cost you. About average for a 50K. Measured against 1076 races of the same distance. Cut-off calculator →

Field size ~394 Large. Rarely out of sight of another runner.

DUV results for the 2026 edition (50km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, April

Daytime high 14°C

Night low 4°C

Rainfall Mostly dry

Daylight 13 h 40 m of light

Regional 2001-2020 average for April — NASA POWER, grid elevation 536 m. Not a forecast.

Results history

Year	Race	Finishers	Men's winner	Women's winner
2026	50km	394	Jerome Furer · 04:00:30	Nadja Faessler · 04:52:59
2025	50km	255	Gilles Roux · 04:21:01	Marta Wenta · 05:24:58
2024	50km	162	Jean-Francois Pugin · 04:32:13	Kerstin Dusch · 06:25:28
2023	50km	145	Jeremy Hunt · 04:37:55	Karine Travaillaud · 05:35:01
2022	50km	82	Ramon Manetsch · 04:09:09	Sara Escobar Carron · 05:21:53
2021	50km	89	Pierre Bernard · 04:55:50	Klasina Brunott · 05:56:19

The field grew 55% between 2025 (255) and 2026 (394). 20% of the 2026 field were women.

DUV results for the 2026 edition (50km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Course notes

terrain This is a mountain course. Poles are highly recommended for the sustained climbs.
gear With trail terrain, choose a shoe with moderate cushioning for optimal performance.

Gear for this race

Chosen for 50 km of trail with 2,490 m of ascent.

Trail Running Shoes 50 m of climb per kilometre — grip and rock protection before cushioning.
Race Nutrition 50 km of self-supported fuelling between aid stations.
Hydration Vests Pole attachment and chest-strap stability on steep ground.
Trekking Poles 2,490 m of ascent to walk up.
GPS Watches Battery life first — a 50 km day outlasts most full-GPS modes.

New Balance

Fuel Cell Super Comp Trail

★★★★★ 4.5

Adidas

Terrex Speed Ultra

RunRepeat found the Adidas Terrex Speed Ultra to have a grippy outsole and great lockdown, while iRunFar noted that the shoe works on a variety of trail conditi…

★★★★★ 4.5

Spring Energy

Awesome Sauce

Real food gel with 180 calories. Rice-based with natural flavors.

$4 ★★★★★ 4.6

Nathan

VaporKrar 12L

12L race vest co-designed with ultra champion Rob Krar, with insulated bladder pocket.

$170 ★★★★★ 4.6

Black Diamond

Distance FLZ

Lightweight folding trekking poles with FlickLock Z adjustment. 340g per pole.

$170 ★★★★★ 4.7

Garmin

Enduro 3

Ultra-endurance GPS watch with solar charging and 300+ hour battery in GPS mode.

$900 ★★★★★ 4.8

All gear guides →

Overview

Holding a field bigger than 97% of 50k peers and smaller than only 3%, this 50 km trail race in Fontenais puts runners into one of the largest packs at this distance. The course demands sustained climbing, packing 49.8 meters of elevation gain into every kilometer across its 2490 meters of total ascent.

A 10-hour limit allows an average pace of 12 minutes per kilometer, making the cut-off more generous than 53% of 50k events and tighter than 47%. That balance leaves room to manage the steep profile without facing an unusually aggressive clock.

Similar races

Other 50K trail ultras, closest in distance first.