"I still can't believe it," Bettiol said. "I still don't believe what I did. My first win." Kasper Asgreen of Denmark finished second and Norway's Alexander Kristoff completed the podium. The Tour of Flanders, also known as De Ronde, is one of five high-profile classics along with Milan-San Remo, Paris-Roubaix, Liege-Bastogne-Liege and the Giro di Lombardia.
It features 17 short but punishing climbs and five cobblestone sections. Paris-Roubaix, known as the "Hell of the North" for its even more challenging cobbles, is next Sunday.