Bonneville Backyard Ultra

The Bonneville Backyard Ultra is Utah's original last man standing ultramarathon, taking place at the Deer Creek Dam Trailhead in Provo, UT. Participants must complete a 4.167-mile loop every hour to remain in the race. The course features an out-and-back design, with runners needing to be at the starting line for a corral setup before each loop.

The event emphasizes personal limits and endurance, as only one runner will ultimately finish without a DNF (Did Not Finish). For more details, interested individuals can visit the event's official website. Visit the organization's website for the most recent information.