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. Don Mattingly and Jimmy Key have faced off against each other 75 times throughout their careers. Against Jimmy Key, Don Mattingly has maintained a Batting Average of 0.309, higher than his career batting average of 0.307. Jimmy Key's career opposing batting average is 0.255, lower than their face-off average, possibly underperforming against Don Mattingly. Don Mattingly's OPS against Jimmy Key is 0.721, lower than his career OPS of 0.829.

Jimmy Key has struck out Don Mattingly 4 times in 68 at-bats. Against Jimmy Key, Don Mattingly strikes out every 18.750 plate appearances. Don Mattingly's career Plate Appearance per Strikeout is 17.39, striking out more often against Jimmy Key than average. Jimmy Key strikes out a batter every 6.969 plate appearances, striking out Don Mattingly less often than his average.