Ultra Running Hub Altenbeken, Germany · Sunday, November 1, 2026
Viadukt Ultramarathon
What the course asks
Typical conditions, November
Regional 2001-2020 average for November — NASA POWER, grid elevation 142 m. Not a forecast.
The Aid Station
Course-specific beta from the community
This is a rolling course. Expect fast, runnable sections where rhythm is key.
With trail terrain, choose a shoe with moderate cushioning for optimal performance.
Gear for this race
Chosen for 45 km of trail with 930 m of ascent.
- Trail Running Shoes 21 m of climb per kilometre — grip and rock protection before cushioning.
- Race Nutrition 45 km of self-supported fuelling between aid stations.
- Hydration Vests Pole attachment and chest-strap stability on steep ground.
- Trekking Poles 930 m of ascent to walk up.
- GPS Watches Battery life first — a 45 km day outlasts most full-GPS modes.
Overview
The Viadukt Ultramarathon, a trail race in Altenbeken, Germany, offers a 45.2-kilometer course with 930 meters of elevation gain, making for a climb of 20.6 meters per kilometer. This places its elevation gain per kilometer in the top 21% of 50k races.
With a 9-hour time limit, runners must maintain a pace faster than 11.9 minutes per kilometer. This cutoff is tighter than 53% of 1009 peer 50k races, requiring participants to manage the challenging terrain efficiently. The course is described as an extension of the 29-kilometer Viadukt hiking trail, traversing the Eggegebirge mountains.
Similar races
Other 50K trail ultras, closest in distance first.