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, as most participants will not finish, with only one runner ultimately declared the winner. The race is set for April 26, 2025, and registration closes a week prior. For more details, visit the official website. Visit the organization's website for the most recent information.