Hvittingfoss, Norway · Saturday, September 5, 2026
Fixed Distance 50K
Hvittingfoss Trail Challange
Race completed
52 km Distance
2,500 m Climbing
6.4 Grit · Hardcore
What the course asks
Climbing rate 48 m / km
Mountain. Significant climbing. Steep sections will require power hiking.
Time limit 12 hours
13:51 min/km average. Generous. Walkable throughout for most of the field. More forgiving than 67% of 50K races. Measured against 1007 races of the same distance. Cut-off calculator →
Typical conditions, September
Daytime high 15°C
Night low 7°C
Rainfall Showers likely
Daylight 13 h 51 m of light
Regional 2001-2020 average for September — NASA POWER, grid elevation 255 m. Not a forecast.
The Aid Station
Course-specific beta from the community
This is a mountain course. Poles are highly recommended for the sustained climbs.
With trail terrain, choose a shoe with moderate cushioning for optimal performance.
Gear for this race
Chosen for 52 km of trail with 2,500 m of ascent.
- Trail Running Shoes48 m of climb per kilometre — grip and rock protection before cushioning.
- Race Nutrition52 km of self-supported fuelling between aid stations.
- Hydration VestsPole attachment and chest-strap stability on steep ground.
- Trekking Poles2,500 m of ascent to walk up.
- HeadlampsA 12 h limit puts you out there after dark.
Similar races
Other 50K trail ultras, closest in distance first.