Ultra Running Hub Västerås, Sweden · Saturday, September 19, 2026
Fixed Distance 50 mi
Black River Run 50 Miles
3 days to go
80 km Distance
not publishedn/a Climbing
4.0 est Grit · Challenging
Calculated from 80 km alone — the organiser has not published an elevation profile. Read 4.0 as a floor, not a verdict.
What the course asks
Time limit 30 hours
22:30 min/km average. Generous. Walkable throughout for most of the field. Climbing is unpublished, so this pace is a ceiling on the effort, not a measure of it. Among the most forgiving 50 mi cut-offs we track. Measured against 455 races of the same distance. Cut-off calculator →
Field size ~23 Small. Long stretches with nobody in sight.
DUV results for the 2025 edition (80.5km) — 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 17°C
Night low 9°C
Rainfall Mostly dry
Daylight 12 h 38 m of light
Regional 2001-2020 average for September — NASA POWER, grid elevation 47 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 80 km of trail.
- Trail Running Shoes80 km of trail — cushioning that is still there in the last quarter.
- Race Nutrition80 km of self-supported fuelling between aid stations.
- Hydration VestsFlask capacity for 80 km, without the bounce.
- HeadlampsA 30 h limit puts you out there after dark.
- GPS WatchesBattery life first — a 80 km day outlasts most full-GPS modes.
Course Notes
10 mile laps on trail and gravel through the forest and along a small river.
Similar races
Other 50 mi trail ultras, closest in distance first.