Ultra Running Hub Saksvik, Norway · Saturday, October 10, 2026
Fixed Distance 50K
Krukes Ultra-Trail Challenge 8 laps
24 days to go
54 km Distance
2,949 m Climbing
7.1 Grit · Hardcore
What the course asks
Climbing rate 55 m / km
Mountain. Significant climbing. Steep sections will require power hiking.
Time limit 10 hours
11:07 min/km average. Generous. Walkable throughout for most of the field. About average for a 50K. Measured against 1007 races of the same distance. Cut-off calculator →
Typical conditions, October
Daytime high 7°C
Night low 2°C
Rainfall Showers likely
Daylight 10 h 33 m of light
Regional 2001-2020 average for October — NASA POWER, grid elevation 263 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 54 km of trail with 2,949 m of ascent.
- Trail Running Shoes55 m of climb per kilometre — grip and rock protection before cushioning.
- Race Nutrition54 km of self-supported fuelling between aid stations.
- Hydration VestsPole attachment and chest-strap stability on steep ground.
- Trekking Poles2,949 m of ascent to walk up.
- GPS WatchesBattery life first — a 54 km day outlasts most full-GPS modes.
Course Notes
The course consists of an out-and-back loop, 6.7056 km long with 368.666... meters of elevation gain. 24 loops corresponds to 100 miles and an elevation gain of 8848 meters (one Everest). Trails.
Similar races
Other 50K trail ultras, closest in distance first.