Norway · Oslo
Oslo Trail Challenge
Distance
50 km
Date
September 26, 2026
Entry fee
950 NOK
€ / km
€1.69
200K city-edge epic: forests, lakes, and endless night miles close to Oslo’s urban comforts.
Elevation and Terrain
Total Meters
1871m
D+/KM
37.42m/km
For context, the Tor des Géants 330 loop has 73 D+/km.
Avg Uphill Gradient
8.2%
Avg Downhill Gradient
-8.9%
Uphill gradient distribution
Route Profile
Analysed 2026-05-02Terrain breakdown
Terrain
Climbs
Top climbs
4.2 km · 252 m gain
starts km 47 · avg 6.0% · max 22.9%
5.8 km · 173 m gain
starts km 21 · avg 2.9% · max 26.1%
1.9 km · 153 m gain
starts km 17 · avg 8.2% · max 22.9%
Top descents
5.1 km · 242 m drop
starts km 25 · avg -4.8% · max -39.9%
3.2 km · 224 m drop
starts km 18 · avg -6.9% · max -23.9%
6.7 km · 193 m drop
starts km 38 · avg -3.0% · max -24.6%
Race files
Logistics
Nearest airport
Oslo (OSL)
Notes
Start: ~30–45 min / Public transport: Very good / Accommodation: Easy (Oslo)
