Welcome to the 4th annual MAD Backyard Ultra which is slotted as a bronze ticket event for The Big Dog's Backyard Ultra. The Last One Standing earns a free entry into Bob's Big Timber BYU a silver ticket event. in 2024, Kyle Kalbus, course record holder, repeated as the Last One Standing. Participants will run a 4.1667-mile loop every hour until only one person is standing. You have one hour to finish the loop once it has started. If you finish a loop within the hour, you may start the next hour’s loop, provided you are in the start corral when the next hour starts. If you do not finish within the hour, you are out of the race and considered a DNF.