Ultra Running Hub Stockholm, Sweden · Saturday, August 22, 2026
Fixed Distance 50 mi
Hjorthagen Ultra Trail 100 - 50M
Race completed
81.9 km Distance
213 m Climbing
4.4 Grit · Challenging
What the course asks
Climbing rate 3 m / km
Fast & Flat. This course is relatively flat and fast. Ideal for PB attempts.
Time limit 16 hours
11:43 min/km average. Generous. Walkable throughout for most of the field. About average for a 50 mi. Measured against 455 races of the same distance. Cut-off calculator →
Typical conditions, August
Daytime high 22°C
Night low 13°C
Rainfall Mostly dry
Daylight 15 h 03 m of light
Regional 2001-2020 average for August — NASA POWER, grid elevation 27 m. Not a forecast.
The Aid Station
Course-specific beta from the community
This is a fast & flat course. Expect fast, runnable sections where rhythm is key.
With trail terrain, choose a shoe with moderate cushioning for optimal performance.
Gear for this race
Chosen for 82 km of trail with 213 m of ascent.
- Trail Running Shoes82 km of trail — cushioning that is still there in the last quarter.
- Race Nutrition82 km of self-supported fuelling between aid stations.
- Hydration VestsFlask capacity for 82 km, without the bounce.
- HeadlampsA 16 h limit puts you out there after dark.
- GPS WatchesBattery life first — a 82 km day outlasts most full-GPS modes.
Course Notes
Ett unikt ultralopp som kombinerar naturens skönhet, löpargemenskap och fysiska utmaningar på en naturskön varvbana genom Lill-jansskogen. 11,7k/varv. Höjdmeter: 213m/varv Asfalt: 274m Grusväg/motionsslinga 7426m Stig: 3800m.
Similar races
Other 50 mi trail ultras, closest in distance first.