Saturday, September 26, 2026 Gjerdrum, NOR

Trail 50k

Oslo Trail Challenge 55km

106 days away

55km Distance

15,101,810m Elevation

10 Grit Score

Elite/Extreme Level

Vertical Intensity 274578 D+/km

Flat Hilly Mtn

Extreme verticality. This is a technical mountain course with sustained steep grades.

The Aid Station

Course-specific beta from the community

⛰️ terrain

This is a vertical course. Poles are highly recommended for the sustained climbs.

By UltraHub Expert

👟 gear

With trail terrain, choose a shoe with moderate cushioning for optimal performance.

By UltraHub Expert

OPENFREE MAP (LIBRE)

Hilly terrain, mostly soft ground.