Contrevoz, France · Saturday, September 26, 2026

Fixed Distance 50 mi

Ultra Trail Grand Colombier - Ultra 80km

Race completed

80 km Distance

3,300 m Climbing

9.0 Grit · Elite / extreme

45.8046° N, 5.6284° E © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 41 m / km Mountain. Significant climbing. Steep sections will require power hiking.

Time limit 17 hours 12:45 min/km average. Comfortable. Room to walk the climbs and stop at aid. More forgiving than 72% of 50 mi races. Measured against 477 races of the same distance. Cut-off calculator →

Field size ~352 Large. Rarely out of sight of another runner.

DUV results for the 2025 edition (74km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, September

Daytime high 20°C

Night low 10°C

Rainfall Mostly dry

Daylight 12 h 02 m of light

Regional 2001-2020 average for September — NASA POWER, grid elevation 579 m. Not a forecast.

Results history

Year	Race	Finishers	Men's winner	Women's winner
2025	74km	352	Killian Luison · 07:04:39	Anais Dachet · 08:27:14

12% of the 2025 field were women.

DUV results for the 2025 edition (74km) — 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 80 km of trail with 3,300 m of ascent.

Trail Running Shoes 41 m of climb per kilometre — grip and rock protection before cushioning.
Race Nutrition 80 km of self-supported fuelling between aid stations.
Hydration Vests Pole attachment and chest-strap stability on steep ground.
Trekking Poles 3,300 m of ascent to walk up.
Headlamps A 17 h limit puts you out there after dark.

Adidas

Terrex Agravic Speed Ultra

RunRepeat found the Adidas Terrex Agravic Speed Ultra to be perfect for midfoot and forefoot strikers, while iRunFar noted that the shoe feels incredibly effici…

★★★★★ 4.5

Salomon

Ultra Glide 4

$159.95 ★★★★★ 4.6

Tailwind

Endurance Fuel

All-in-one calorie and electrolyte drink mix. 200 calories per serving.

$25 ★★★★★ 4.8

Salomon

ADV Skin 12

Industry-standard 12L race vest with front flask pockets and minimal bounce.

$180 ★★★★★ 4.8

Komperdell

Carbon Ultralight Vario 4

4-section folding carbon poles with compact pack size for mandatory gear.

$160 ★★★★★ 4.5

Petzl

NAO RL

1500-lumen reactive lighting headlamp with 15-hour runtime. Automatic brightness adjustment.

$150 ★★★★★ 4.7

All gear guides →

Overview

The Ultra Trail Grand Colombier - Ultra 80km was an 80 km trail race starting in Contrevoz, France, that took runners across steep mountain trails and valleys toward the Grand Colombier. Packing 3300 meters of elevation gain across the route, the profile averaged 41.3 meters of climb per kilometer, demanding sustained climbing legs from start to finish.

With 352 finishers in 2025, the event drew a field bigger than 95% of 50mi races and smaller than 5% of its 677 peers. The 17-hour time limit allowed a cutoff pace of 12.8 minutes per kilometer, establishing a standard more generous than 72% of 50mi cut-offs and tighter than 28% of 475 peer events.

Similar races

Other 50 mi trail ultras, closest in distance first.