Savognin, Switzerland · Saturday, August 14, 2027

Fixed Distance 50K

Swiss Irontrail T55

318 days away

55 km Distance

4,200 m Climbing

9.1 Grit · Elite / extreme

46.5969° N, 9.5980° E © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 76 m / km Vertical. Extreme verticality. This is a technical mountain course with sustained steep grades.

Time limit 16 hours 17:27 min/km average. Generous. Walkable throughout for most of the field. More forgiving than 89% of 50K races. Measured against 1034 races of the same distance. Cut-off calculator →

Field size ~47 Small. Long stretches with nobody in sight.

DUV results for the 2026 edition (55km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, August

Daytime high 16°C

Night low 6°C

Rainfall Showers likely

Daylight 14 h 18 m of light

Regional 2001-2020 average for August — NASA POWER, grid elevation 2037 m. Not a forecast.

Results history

Year	Race	Finishers	Men's winner	Women's winner
2026	55km	47	Gregorio Aiello · 07:34:07	Victoria Buchli · 09:21:19
2025	55km	96	Dominic Funk · 07:23:50	Ornella Poltera · 08:43:20

The field shrank 51% between 2025 (96) and 2026 (47). 19% of the 2026 field were women.

DUV results for the 2026 edition (55km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

The Aid Station

Course-specific beta from the community

⛰️ terrain

This is a vertical course. Poles are highly recommended for the sustained climbs.

By UltraHub Expert

👟 gear

With trail terrain, choose a shoe with moderate cushioning for optimal performance.

By UltraHub Expert

Gear for this race

Chosen for 55 km of trail with 4,200 m of ascent.

Trail Running Shoes 76 m of climb per kilometre — grip and rock protection before cushioning.
Race Nutrition 55 km of self-supported fuelling between aid stations.
Hydration Vests Pole attachment and chest-strap stability on steep ground.
Trekking Poles 4,200 m of ascent to walk up.
Headlamps A 16 h limit puts you out there after dark.

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

La Sportiva

Prodigio Pro

RunRepeat found the La Sportiva Prodigio Pro to have a secure, locked-in fit due to its premium upper, and also praised the shoe's energetic ride, particularly…

$225 ★★★★★ 4.6

Spring Energy