The first ever Wisconsin’s Backyard Ultra is coming to you for 2021.

COVID 19 took our 2020 event as well as Golden Ticket chance away from us. However, we excited to announce that the 2021 Big Hill Bonk has been selected again as a Golden Ticket event for the 2021 Big's Backyard Ultra.

Inspired by the Barkley Marathons’ creator, Gary Cantrell, aka Lazarus Lake, who started the original Big Dog’s Backyard Ultra, more races of this format have been popping up around the world. This is one of them.

So in likewise fashion, the Wisconsin’s Backyard Ultra will follow as closely to Laz’s original format as possible.

It truly is a simple concept. It’s a “Last Person Standing Race”. Meaning in the end, just one runner will finish the race.

At 1730 hours on Friday evening, April 2nd, we will start a race at the Welty Environmental Center in Beloit Wisconsin’s Big Hill Park and run a 4.166 mile loop. Runners will have just one hour to complete this loop.

Again at 1830 hours, we will begin another loop around the same 4.166 mile course.
The same will be done at 1930, 2030, 2130, and so on, every hour.

Runners must be standing in the starting corral when the next loop starts or else they will not be able to continue.
Runners will also not continue if they choose not to themselves.
There will be no late starts once the bell is rung.
Loops will continue until only one runner remains, and at that point, once that person completes a loop on their own, that runner is the winner.
All other runners are a DNF.

Upcoming Races

Apr 1 2022
Variable Hours
Multiple Loop Course
3 Elevation Rating
Hilly, ~2500-7500 feet in 50 miles
3 Surface Rating
Some rocks, root, and/or ruts


Variable Hours View course top times

Date Finishers Top Result (M) Top Result (F)
08/27/21 No Results Posted. Submit Results
We try to keep the most accurate information about this race, but changes do happen. Always visit the official race website for the most up to date information. If you see an error, please let us know

Unico 100M - 100K - 50K

  • Dec 4, 2021
  • Wingate, NC
50 KM 100 KM 100 Miles