So far in his career, McMahon has surrendered 1,054 base knocks while totaling 1,003 strikeouts in 1,310 innings. He has given up a total of 431 earned runs while holding a WHIP of 1.246 and being the owner of a FIP of 2.9. He has a K/BB ratio of 1.73 and he has faced 5,503 opposing hitters in his MLB career. McMahon (90-68 career win-loss mark) has earned a 2.96 earned run average while giving up 7.2 hits per nine innings.
