Thunersee Ultramarathon

Race completed

60 km Distance

2,000 m Climbing

6.0 Grit · Hardcore

46.7512° N, 7.6217° E© OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 33 m / km Rolling. Moderate undulations. Requires consistent effort across varying grades.

Time limit 12 hours 12:00 min/km average. Generous. Walkable throughout for most of the field. About average for a 50K. Measured against 1007 races of the same distance. Cut-off calculator →

Field size ~7 Tiny. You will run alone for most of it.

DUV results for the 2026 edition (60km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, June

Daytime high 21°C

Night low 12°C

Rainfall Showers likely

Daylight 15 h 42 m of light

Regional 2001-2020 average for June — NASA POWER, grid elevation 752 m. Not a forecast.

The Aid Station

Course-specific beta from the community

⛰️ terrain

This is a rolling course. Expect fast, runnable sections where rhythm is key.

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 60 km of trail with 2,000 m of ascent.

Trail Running Shoes33 m of climb per kilometre — grip and rock protection before cushioning.
Race Nutrition60 km of self-supported fuelling between aid stations.
Hydration VestsPole attachment and chest-strap stability on steep ground.
Trekking Poles2,000 m of ascent to walk up.
HeadlampsA 12 h limit puts you out there after dark.

Adidas

Terrex Agravic Speed Ultra

★★★★★ 4.5

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

Skratch Labs