It doesn't matter if you are trying to make your next big bet or parlay, tweak your fantasy team, rub something in your buddy's face, or just want to understand the game better, it's always interesting to look at a matchup. Mark McGwire and Andy Pettitte have faced off against each other 21 times throughout their careers. Against Andy Pettitte, Mark McGwire has maintained a Batting Average of 0.250, lower than his career batting average of 0.263. Andy Pettitte's career opposing batting average is 0.269, higher than their face-off average, possibly overperforming against Mark McGwire. Mark McGwire's OPS against Andy Pettitte is 0.986, higher than his career OPS of 0.982.

Andy Pettitte has struck out Mark McGwire 5 times in 20 at-bats. Against Andy Pettitte, Mark McGwire strikes out every 4.200 plate appearances. Mark McGwire's career Plate Appearance per Strikeout is 4.8, striking out less often against Andy Pettitte than average. Andy Pettitte strikes out a batter every 5.749 plate appearances, striking out Mark McGwire more often than his average.