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 approximately 2.08 miles in each direction.

The event emphasizes personal endurance and pushing one's limits, rather than competition. Runners must be present at the starting line before the hour bell rings to continue. Registration closes a week prior to the event, and further details can be found on the official website. Visit the organization's website for the most recent information.