Bonneville Backyard Ultra
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Bonneville Backyard Ultra
The Bonneville Backyard Ultramarathon is a last person standing backyard ultra held in Provo, UT near Deer Creek Reservoir at the Deer Creek Dam Trailhead. The event uses the original backyard ultra format: runners complete one 4.167-mile loop each hour on the hour until only one runner remains.
The course is an out-and-back along Deer Creek Reservoir, about 2.08 miles each way. Terrain is described as mostly smooth and very runnable. The repeating hourly loop creates a strong emphasis on pacing, routine, and sleep management.
Race rules specify strict hourly starts. Runners must be inside a painted corral before the bell that signals each loop; late starts, pacers, and exceptions are not allowed. Race signals include multiple whistles and a bell to mark approaching start times: three whistles means three minutes remaining, two whistles means two minutes remaining, one whistle means one minute remaining, and the bell signals the start of the loop on the hour.
Organizers note that they may privately invite a small number of waitlisted runners to be standby participants on race day to cover last-minute no-shows. Registration for the event closes on April 20 according to the event listing. Visit the organization's website for the most recent information.
