Bad Iburg, Germany · Saturday, July 10, 2027

Fixed Distance 50K

T52-1600

271 days away

52 km Distance

1,600 m Climbing

5.0 Grit · Challenging

52.1549° N, 8.0422° E © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 31 m / km Rolling. Moderate undulations. Requires consistent effort across varying grades.

Time limit 9 hours 10:23 min/km average. Firm. Sustained running. Long aid-station stops will cost you. Tighter than 74% of 50K races. Measured against 1055 races of the same distance. Cut-off calculator →

Typical conditions, July

Daylight 16 h 30 m of light

Course notes

terrain This is a rolling course. Expect fast, runnable sections where rhythm is key.
gear With trail terrain, choose a shoe with moderate cushioning for optimal performance.

Gear for this race

Chosen for 52 km of trail with 1,600 m of ascent.

Trail Running Shoes 31 m of climb per kilometre — grip and rock protection before cushioning.
Race Nutrition 52 km of self-supported fuelling between aid stations.
Hydration Vests Pole attachment and chest-strap stability on steep ground.
Trekking Poles 1,600 m of ascent to walk up.
GPS Watches Battery life first — a 52 km day outlasts most full-GPS modes.

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

New Balance