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 McDonald and Jeremy Affeldt have faced off against each other 12 times throughout their careers. Against Jeremy Affeldt, John McDonald has maintained a Batting Average of 0.417, higher than his career batting average of 0.233. Jeremy Affeldt's career opposing batting average is 0.256, lower than their face-off average, possibly underperforming against John McDonald. John McDonald's OPS against Jeremy Affeldt is 1.083, higher than his career OPS of 0.59.

Jeremy Affeldt has struck out John McDonald 2 times in 12 at-bats. Against Jeremy Affeldt, John McDonald strikes out every 6.000 plate appearances. John McDonald's career Plate Appearance per Strikeout is 6.99, striking out less often against Jeremy Affeldt than average. Jeremy Affeldt strikes out a batter every 5.603 plate appearances, striking out John McDonald less often than his average.