Backyard Ultra PTA - Van Gaalen

The backyard ultra is a form of ultra-marathon race where competitors must consecutively run a 6.706 km lap in less than one hour. These laps are repeated on the hour, every hour. When each lap is completed, the remaining time within that hour is used to recover, rest, eat before the start of the next lap. The race ends when there is only one runner remaining to complete a lap - that runner is marked as the winner and only finisher, with all other runners receiving a "DNF".