Osnabrück-Sutthausen, Germany · Saturday, January 2, 2027

Fixed Distance Marathon

Gut Sutthausen Ultramarathon

108 days away

45 km Distance

450 m Climbing

2.9 Grit · Entry level

52.2726° N, 8.0498° E© OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 10 m / km Fast & Flat. This course is relatively flat and fast. Ideal for PB attempts.

Time limit 8 hours 10:40 min/km average. Generous. Walkable throughout for most of the field. Tighter than 86% of Marathon races. Measured against 43 races of the same distance. Cut-off calculator →

Field size ~16 Tiny. You will run alone for most of it.

DUV results for the 2026 edition (45km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, January

Daytime high 4°C

Night low -1°C

Rainfall Mostly dry

Daylight 7 h 48 m of light

Regional 2001-2020 average for January — NASA POWER, grid elevation 50 m. Not a forecast.

The Aid Station

Course-specific beta from the community

⛰️ terrain

This is a fast & flat 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 45 km of trail with 450 m of ascent.

Trail Running Shoes45 km of trail — cushioning that is still there in the last quarter.
Race Nutrition45 km of self-supported fuelling between aid stations.
Hydration VestsFlask capacity for 45 km, without the bounce.
GPS WatchesBattery life first — a 45 km day outlasts most full-GPS modes.

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