BOSTON — Romy Gonzalez ’s OPS against left-handed pitchers (1.030) is 294 points higher than the average among American League right-handed hitters (.736).

The Red Sox infielder can’t put a finger on exactly why he’s been this good against lefties but he has one simple theory.

“My dad’s lefty, so I took lefty BP my whole life and did a lot of work with him,” Gonzalez said.

Historically, batters have more success against pitchers who throw with the opposite handedness. For years, managers have stacked their lineups with right-handed batters when they face a lefty starter and left-handed hitters against a righty starter.

But Gonzalez’s numbers are exceptionally better than most of his peers. Among qualified right-handed hitters, Gonzalez’s 1.030 OPS against lefties ranks third, beh

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