In an eight-season career, Big Bill posted a 65–71 record with 408 strikeouts and a 3.20 ERA in 1179.2 innings pitched. In 1917, Chick Gandil and his teammate, Swede Risberg, allegedly collected $45 from each member of the White Sox and paid off the Detroit Tigers in two crucial doubleheaders late in the season. When Big Bill agreed that his team would go easy, the Tigers lost all four games, allowing the White Sox to win the American Leaguepennant. He was one of the clean members on the 1919 Chicago White Sox team which was made famous by the Black Sox scandal. Even so, Big Bill gave up 8 hits, 3 walks, and 3 earned runs for a 5.79 ERA in 4+2⁄3 innings pitched in the 1919 World Series.
1917: 13 wins, career-bests with 2.09 ERA (7th best in AL), 126 Adjusted ERA+ (8th in AL), 7.41 hits allowed per 9 innings pitched (8th in AL), and 12 batters hit by pitch (3rd in AL).