Callahan has taken the ball for 1,603 frames and has racked up 445 K’s so far in his career. His ERA is 3.39 (603 earned runs allowed) and he has a WHIP of 1.363. He has given up 1,748 base knocks (9.8 hits per nine innings) and has 437 free passes. Callahan (99-73 win-loss record in his career) is the owner of a FIP of 3.33 and he has gone up against 6,855 opposing batters during his time in the major leagues.
