End-Backyard Ultra

The END-BACKYARD Ultra is a unique endurance running event held in McLeod, North Dakota. The race features a 4.17-mile (6.7 km) loop that all participants must complete within one hour. Each hour, runners start together, and those who fail to begin the next lap on time are eliminated.

The event continues until only one runner remains, who is declared the winner. The race emphasizes endurance and strategy over speed, as individual lap times are not recorded, only the number of laps completed. The atmosphere encourages camaraderie, with eliminated runners often staying to support others. Visit the organization's website for the most recent information.