Ultra Running Hub Trail 100mi
Black River Run 100 Miles
99 days away
161km Distance
8.1 Grit Score
Hardcore Level
Vertical Intensity 0 D+/km
This course is relatively flat and fast. Ideal for PB attempts.
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.
For 100km+ efforts, prioritize real food at aid stations to prevent palate fatigue.
Course Intelligence
OPENFREE MAP (LIBRE)Course Notes
10 mile laps on trail and gravel through the forest and along a small river.