Tromsø, Norway · Saturday, August 22, 2026

Fixed Distance 50K

Tromsø Mountain Challenge Ultra

Race completed

50 km Distance

1,600 m Climbing

4.9 Grit · Challenging

69.6489° N, 18.9551° E© OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 32 m / km Rolling. Moderate undulations. Requires consistent effort across varying grades.

Time limit 9 hours 10:48 min/km average. Generous. Walkable throughout for most of the field. Tighter than 71% of 50K races. Measured against 1007 races of the same distance. Cut-off calculator →

Field size ~176 Mid-sized. Company early, well spread out by halfway.

DUV results for the 2025 edition (50km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, August

Daytime high 14°C

Night low 8°C

Rainfall Showers likely

Daylight 17 h 05 m of light

Regional 2001-2020 average for August — NASA POWER, grid elevation 231 m. Not a forecast.

The Aid Station

Course-specific beta from the community

⛰️ terrain

This is a rolling course. Expect fast, runnable sections where rhythm is key.

By UltraHub Expert

👟 gear

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

By UltraHub Expert

Gear for this race

Chosen for 50 km of trail with 1,600 m of ascent.

Trail Running Shoes32 m of climb per kilometre — grip and rock protection before cushioning.
Race Nutrition50 km of self-supported fuelling between aid stations.
Hydration VestsPole attachment and chest-strap stability on steep ground.
Trekking Poles1,600 m of ascent to walk up.
GPS WatchesBattery life first — a 50 km day outlasts most full-GPS modes.

Adidas

Prodigio Pro

RunRepeat found the La Sportiva Prodigio Pro to have a secure, locked-in fit due to its premium upper, and also praised the shoe's energetic ride, particularly…

$225 ★★★★★ 4.6

Spring Energy

Awesome Sauce

Real food gel with 180 calories. Rice-based with natural flavors.

$4 ★★★★★ 4.6

Salomon

ADV Skin 12

Industry-standard 12L race vest with front flask pockets and minimal bounce.

$180 ★★★★★ 4.8

LEKI

Ultratrail FX.One

Ultra-light carbon folding poles (135g each) designed for mountain ultra racing.

$200 ★★★★★ 4.6

COROS

APEX 2 Pro

GPS running watch with 75-hour GPS battery, topo maps, and training metrics.

$500 ★★★★★ 4.7

All gear guides →

Course Notes

The start is at Snarbyeidet and the trail goes over the mountain to the vally of Tromsdalen. The course follow trail path and passes sevral huts with service stations. It is a beautiful, but challenging ultra run with variation in the terrain.

Similar races

Other 50K trail ultras, closest in distance first.