Event· Lisboa
Backyard Ultra Ansião 2027
The Backyard Ultra Ansião 2027 is a last-person-standing ultramarathon held in Ansião, Portugal, where runners must complete a 6.706-kilometer loop every hour, starting on the hour, until only one competitor remains. There is no fixed finish line—the race continues endlessly until all but one athlete either can't or choose not to start another lap.