Ben Cantwell

After Cantwell led NL relievers with 12 wins and 8 losses in 1932, Braves manager Bill McKechnie returned him to the rotation in 1933. Cantwell responded with a league-leading .667 winning percentage (20-10). But 1932-33 were by far his best years; in 1935, Cantwell suffered 25 losses, including 13 in a row.