Millston, WI, United States · Saturday, October 17, 2026

Fixed Distance 50 mi

Black River Trail Classic 85 Km

31 days away
85 km Distance
not publishedn/a Climbing
4.3 est Grit · Challenging

Calculated from 85 km alone — the organiser has not published an elevation profile. Read 4.3 as a floor, not a verdict.

44.1930° N, 90.6476° W© OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Field size ~9 Tiny. You will run alone for most of it.

DUV results for the 2025 edition (85km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, October

Daytime high 14°C
Night low 3°C
Rainfall Mostly dry
Daylight 10 h 59 m of light

Regional 2001-2020 average for October — NASA POWER, grid elevation 301 m. Not a forecast.

The Aid Station

Course-specific beta from the community

👟 gear

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

By UltraHub Expert

Gear for this race

Chosen for 85 km of trail.

  • Trail Running Shoes85 km of trail — cushioning that is still there in the last quarter.
  • Race Nutrition85 km of self-supported fuelling between aid stations.
  • Hydration VestsFlask capacity for 85 km, without the bounce.
  • Headlamps85 km almost certainly means running into the night.
  • GPS WatchesBattery life first — a 85 km day outlasts most full-GPS modes.
All gear guides →

Course Notes

Races start and finish in the Smrekar Lot. The first half of the course is smooth and runnable. The second half is hilly and hilly.

Similar races

Other 50 mi trail ultras, closest in distance first.