Zimmermann has thrown 1,614 frames and has earned 1,271 strikeouts in his career. His earned run average is 4.07 (730 ER’s allowed) and he has a career WHIP of 1.251. He has allowed 1,673 base hits (9.3 hits per 9 innings) and has 346 walks. Zimmermann (95-91 career win-loss mark) has earned a FIP of 4.01 while facing 6,766 opposing hitters in the major leagues.