Pfeffer (158-112 career win-loss record) is the owner of a 2.77 earned run average while giving up 8.7 hits per 9 innings. His strikeout to walk ratio is 1.41 and he has gone up against 9,968 hitters so far in his career. In his MLB career, Pfeffer has given up 2,320 base knocks while totaling 836 strikeouts in 2,407 innings. He has conceded 742 ER’s while holding a WHIP of 1.210 and a FIP of 2.7.
