Despite the passed balls, Wilhelm won the American League ERA title with a 2.19 ERA. During the 1960 season, Orioles manager Paul Richards devised a larger mitt so his catchers could handle the knuckleball. Richards was well equipped with starting pitchers during that year. By the middle of the season, he said that eight of his pitchers could serve as starters. Wilhelm started 11 of the 41 games in which he appeared. He earned an 11–8 record, a 3.31 ERA and seven saves. He only started one game the following year, but he was an All-Star, registered 18 saves and had a 2.30 ERA.