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 Roseboro and Art Mahaffey have faced off against each other 28 times throughout their careers. Against Art Mahaffey, John Roseboro has maintained a Batting Average of 0.333, higher than his career batting average of 0.249. Art Mahaffey's career opposing batting average is 0.249, lower than their face-off average, possibly underperforming against John Roseboro. John Roseboro's OPS against Art Mahaffey is 1.101, higher than his career OPS of 0.694.

Art Mahaffey has struck out John Roseboro 3 times in 24 at-bats. Against Art Mahaffey, John Roseboro strikes out every 9.333 plate appearances. John Roseboro's career Plate Appearance per Strikeout is 8.16, striking out more often against Art Mahaffey than average. Art Mahaffey strikes out a batter every 6.654 plate appearances, striking out John Roseboro less often than his average.