Norrtälje, Sweden · Saturday, September 5, 2026
Fixed Distance 50 mi
Jättelångt 70 km Trail
Race completed
70 km Distance
not publishedn/a Climbing
3.5 est Grit · Challenging
Calculated from 70 km alone — the organiser has not published an elevation profile. Read 3.5 as a floor, not a verdict.
What the course asks
Field size ~49 Small. Long stretches with nobody in sight.
DUV results for the 2025 edition (70km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.
Typical conditions, September
Daytime high 16°C
Night low 10°C
Rainfall Mostly dry
Daylight 13 h 53 m of light
Regional 2001-2020 average for September — NASA POWER, grid elevation 17 m. Not a forecast.
The Aid Station
Course-specific beta from the community
With trail terrain, choose a shoe with moderate cushioning for optimal performance.
Gear for this race
Chosen for 70 km of trail.
- Trail Running Shoes70 km of trail — cushioning that is still there in the last quarter.
- Race Nutrition70 km of self-supported fuelling between aid stations.
- Hydration VestsFlask capacity for 70 km, without the bounce.
- GPS WatchesBattery life first — a 70 km day outlasts most full-GPS modes.
Course Notes
A cross country ultra marathon along the trail Roslagsleden (Roslagen, Norrtälje to Grisslehamn).
Similar races
Other 50 mi trail ultras, closest in distance first.