The 100 Kilometri del Passatore, or 100k del Passatore, is a 100 km road ultramarathon. It begins at 15:00 in Piazza Duomo, Florence, and concludes in Faenza. The event also functions as the Italian individual 100 km road championship for absolute and master categories, positioning it as a significant race within the national road-ultra calendar.
Participants assemble first at Piazza Vittorio Veneto alle Cascine before proceeding to the Florence starting point. From there, they embark on the point-to-point course toward Faenza. The race's straightforward design is its main draw: a single, extended road run from a renowned city square to another town, contested by competitive ultrarunners and age-group athletes over the same 100 km distance.