Groß-Zimmern, Germany · Saturday, January 16, 2027

Fixed Distance 50K

Jörgs Geburtstagsultra

122 days away

48 km Distance

300 m Climbing

2.9 Grit · Entry level

49.8741° N, 8.8290° E© OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 6 m / km Fast & Flat. This course is relatively flat and fast. Ideal for PB attempts.

Time limit 9 hours 11:15 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 ~27 Small. Long stretches with nobody in sight.

DUV results for the 2026 edition (48km) — 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 3°C

Night low -3°C

Rainfall Mostly dry

Daylight 8 h 35 m of light

Regional 2001-2020 average for January — NASA POWER, grid elevation 172 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 48 km of trail with 300 m of ascent.

Trail Running Shoes48 km of trail — cushioning that is still there in the last quarter.
Race Nutrition48 km of self-supported fuelling between aid stations.
Hydration VestsFlask capacity for 48 km, without the bounce.
GPS WatchesBattery life first — a 48 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