If You Meet Bryce Harper On the Road, Do Not Hang a Breaking Ball

PHILADELPHIA — When Bryce Harper sees a breaking ball middle-middle or middle-in, the most common outcome is not what you might think: He fouls it off. Over the course of the regular season, he saw 61 such pitches and hit 25 of them foul. Six others he took for strikes, nine more he swung at and missed, 11 others were hit in play for outs. Only two of those 61 balls went into the seats.
That still makes him one of baseball’s most dangerous hitters on such pitches. On breaking balls middle-middle and middle-in, he slugged an even 1.000 with an ISO of .524. This season, 161 hitters saw 750 or more pitches from the left side; Harper was 12th in wOBA, fifth in xwOBA, 16th in ISO, and tied for 11th in slugging percentage.
You don’t want to pitch him there. Because what if he doesn’t foul it off?
In the Phillies’ 10–2 win over the Braves in Game 3 of the NLDS, Harper saw 19 total pitches, 16 breaking balls. Three floated into the middle-middle or middle-in region. Sure enough, Harper fouled one of them off. The other two decided the game. Read the rest of this entry »