La Possession, La Reunion, France · Saturday, May 15, 2027

Fixed Distance 50K

Ultra Trail des Géants - Trail des Petrels

209 days away

46 km Distance

2,324 m Climbing

5.8 Grit · Challenging

20.9270° S, 55.3363° E © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 51 m / km Mountain. Significant climbing. Steep sections will require power hiking.

Time limit 17 hours 22:10 min/km average. Generous. Walkable throughout for most of the field. Among the most forgiving 50K cut-offs we track. Measured against 1058 races of the same distance. Cut-off calculator →

Field size ~864 Very large. Congested start, busy aid stations.

DUV results for the 2026 edition (46km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, May

Daytime high 23°C

Night low 20°C

Rainfall Mostly dry

Daylight 11 h 08 m of light

Regional 2001-2020 average for May — NASA POWER, grid elevation 533 m. Not a forecast.

Results history

Year	Race	Finishers	Men's winner	Women's winner
2026	46km	864	Titouan Fort · 05:06:42	Claire Jacquet · 06:08:42

30% of the 2026 field were women.

DUV results for the 2026 edition (46km) — 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 46 km of trail with 2,324 m of ascent.

Trail Running Shoes 51 m of climb per kilometre — grip and rock protection before cushioning.
Race Nutrition 46 km of self-supported fuelling between aid stations.
Hydration Vests Pole attachment and chest-strap stability on steep ground.
Trekking Poles 2,324 m of ascent to walk up.
Headlamps A 17 h limit puts you out there after dark.

Brooks

Catamount 3

RunRepeat found the Brooks Catamount 3 to have a cozier upper that enhances the overall fit, though breathability and durability could be better. iRunFar noted…

★★★★★ 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

Komperdell

Carbon Ultralight Vario 4

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

$160 ★★★★★ 4.5

Nitecore

UT32

Dual-beam trail running headlamp (1100 lumens) with spot and flood beams.

$100 ★★★★★ 4.5

All gear guides →

Overview

Scheduled for May 15, 2027, in La Possession, La Reunion, the Ultra Trail des Géants - Trail des Petrels features a field bigger than 99% of 50k peers, having drawn 864 finishers in 2026. The 46-kilometer route packs 2324 meters of elevation gain, forcing runners into sustained mountain work at a steep rate of 50.5 meters of climb per kilometer.

Despite the heavy climbing, pacing pressure remains minimal. With a 17-hour time limit requiring a pace of only 22.2 minutes per kilometer, the cut-off is more generous than 97% of 50k races, leaving substantial margin to power-hike the climbs without risking disqualification.

Similar races

Other 50K trail ultras, closest in distance first.