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. John Jaso and Justin Masterson have faced off against each other 21 times throughout their careers. Against Justin Masterson, John Jaso has maintained a Batting Average of 0.333, higher than his career batting average of 0.258. Justin Masterson's career opposing batting average is 0.259, lower than their face-off average, possibly underperforming against John Jaso. John Jaso's OPS against Justin Masterson is 1.233, higher than his career OPS of 0.762.

Justin Masterson has struck out John Jaso 3 times in 18 at-bats. Against Justin Masterson, John Jaso strikes out every 7.000 plate appearances. John Jaso's career Plate Appearance per Strikeout is 6.29, striking out more often against Justin Masterson than average. Justin Masterson strikes out a batter every 5.196 plate appearances, striking out John Jaso less often than his average.