Ultra Running Hub La Grange, WI, United States · Saturday, November 7, 2026
tBunk Endurance Challenge 50 Km Night
What the course asks
DUV results for the 2025 edition (31.2mi) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.
Typical conditions, November
Regional 2001-2020 average for November — NASA POWER, grid elevation 231 m. Not a forecast.
Results history
| Year | Race | Finishers | Men's winner | Women's winner |
|---|---|---|---|---|
| 2025 | 31.2mi | 3 | B. Brant · 05:10:00 | — |
| 2024 | 31.2mi | 5 | Oscar Delgado · 09:21:15 | Claire Nodolf · 09:39:15 |
| 2023 | 31.2mi | 17 | Abe Fisher · 05:35:00 | Kimberly Kedinger · 06:25:00 |
| 2022 | 31.2mi | 8 | David Konieczka · 06:54:00 | Nicole Diedrick · 06:30:52 |
The field shrank 40% between 2024 (5) and 2025 (3). 0% of the 2025 field were women.
DUV results for the 2025 edition (31.2mi) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.
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.
Gear for this race
Chosen for 50 km of trail with 1,400 m of ascent.
- Trail Running Shoes 28 m of climb per kilometre — grip and rock protection before cushioning.
- Race Nutrition 50 km of self-supported fuelling between aid stations.
- Hydration Vests Pole attachment and chest-strap stability on steep ground.
- Trekking Poles 1,400 m of ascent to walk up.
- GPS Watches Battery life first — a 50 km day outlasts most full-GPS modes.
Similar races
Other 50K trail ultras, closest in distance first.