Ultra Running Hub Trail 50k
tBunk Endurance Challenge 50 Km
149 days away
50km Distance
1,400m Elevation
4.6 Grit Score
Challenging Level
Vertical Intensity 28 D+/km
Moderate undulations. Requires consistent effort across varying grades.
The Aid Station
Course-specific beta from the community
This is a rolling course. Expect fast, runnable sections where rhythm is key.
With trail terrain, choose a shoe with moderate cushioning for optimal performance.
Course Intelligence
OPENFREE MAP (LIBRE)Course Notes
9.19 miles loop with 1,500’ of elevation, using the Nordic trail system in the Southern Kettle Moraine State Forest.