Underdown Trail Races
Still rowdy since 1989, the Underdown Trail Races are grassroots trail runs in Northern Wisconsin. It’s conveniently located only 6 miles off of Highway 51 and offers runners a wilderness experience on challenging trails formed from glaciers that swept the area thousands of years ago. The course is primarily singletrack climbing hills (up to 70!) that pass by isolated lakes and dozens of boardwalks.
Upcoming Races
Aug 15 2026
60 KM
3,600
3,600
ft.
Single Loop
3
Elevation Rating
Hilly, ~2500-7500 feet in 50 miles
4
Surface Rating
Substantial rocks, roots and/or ruts
Additional Distances
This event also has the following sub ultra distances
26.2 Miles
13.1 Miles
Results
60 KM
| Date | Finishers | Top Result (F) | Top Result (M) |
|---|---|---|---|
| 08/16/25 | 19 | 7:33:58 | 5:20:11 |
| 08/17/24 | 16 | 7:54:30 | 6:41:46 |
50 KM
| Date | Finishers | Top Result (F) | Top Result (M) |
|---|---|---|---|
| 08/19/23 | 11 | 8:26:39 | 8:12:36 |
| 08/13/22 | 35 | 5:22:08 | 4:46:28 |
| 08/21/21 | 9 | 7:07:09 | 6:36:36 |
| 08/22/20 | Race Cancelled | ||
| 08/24/19 | 25 | 6:24:59 | 5:25:59 |
| 08/25/18 | 25 | 6:24:59 | 5:25:59 |
| 08/26/17 | 22 | 6:06:14 | 5:25:55 |