Austria Backyard Ultra - Wagendorf/Oststeiermark

At Austria Backyard Ultra in Wagendorf, Eastern Styria, runners begin the same 6.706 km trail loop each hour until only one competitor remains. It adheres to the official rules of the American original: complete the loop within the hour, be present for the next start, or be disqualified. There is no late start, and the format continues without a set finish time until a single runner is left on the course. The event is situated in the green heart of Austria and utilizes a trail route instead of a road circuit. The straightforward loop accumulates significant mileage rapidly: seven laps surpass marathon distance, fifteen laps reach 100 km, and twenty-four laps cover 100 miles. Wagendorf moved to a Friday afternoon summer start following participant requests for an improved opportunity to encounter the night hours, run with headlamps, and bypass the peak midday heat. This adjustment shifts the focus from a single, rapid effort to recovery, pacing, nutrition, and the hourly decision to continue.