The Wasatch Yard is a backyard ultra held in Park City, Utah, utilizing a 4.167-mile mixed-trail loop within Round Valley. Participants begin a new loop each hour, with the event continuing until only one runner remains. The race adheres to the traditional backyard ultra format: complete the loop within the hour, use the remaining time for rest or refueling, and then rejoin the start line for the next hour's commencement.
The course offers a consistent, repeated challenge rather than a linear journey, shifting the focus from pure speed to pacing, recovery, and maintaining organization throughout the night. The race highlights the importance of a well-equipped crew area, which is crucial in this format as the start/finish line serves as the runner's reset point each hour. The fundamental challenge is straightforward yet demanding: complete one more lap, then another, until all other competitors have ceased.