During his collegiate athletic career he was a Big Ten batting champion in baseball, Big Ten scoring champion in basketball, and Big Ten touchdown leader in football. He was the first University of Michigan athlete to become a first-team All-American in basketball and the first three-time first-team football All-American. In high school, he had been an All-American basketball player, a state champion in track and field, and an All-state player in baseball and football. In addition to his All-American collegiate performances as an end, Oosterbaan threw three touchdown passes in the dedication game of Michigan Stadium.