The backyard is the brainchild of Lazarus Lake, the race director of Barkley Marathons. Backyard ultra is a form of ultramarathon race where competitors must consecutively run the distance of 6706 meters (4.167 miles) in less than one hour. When each lap is completed, the remaining time within the hour is typically used to recover for the next hour’s race.
There is No finish. There is only one finisher. The last one standing.