Cassio was brought to this country at age five in 1909. He took up bowling in 1930 and, despite a serious injury to his bowling hand in a work accident, he mastered the game quickly. He bowled with leading Eastern teams, among them Bowlers Journal and Wagner & Adler, and his teammates included Hall of Famers Tony Sparando, Lou Campi and Al (Lindy) Faragalli. In 1946, he led the USBC Open Championships 10-year average list with 203. That same year he starred in AMF's first bowling film, Ten Pin Magic. His impressive tournament record included 15 titles.