Visualizing Hitters’ Plate Discipline

Today at The Hardball Times I analyze hitters’ plate discipline, who’s the most and least aggressive, who changes their approach with runners on base, show how aggression has changed in the past three years, and understand how aggression affects offensive performance:

A small change in discipline can make a reasonable impact to a player’s offense. Narrowing your focus by one square inch at the plate can gain you almost three points of wRC+. That’s not a lot, but as the inches add up, the effect becomes more noticeable. Let’s put it another way. Narrow your focus by six square inches and you can go from a league-average hitter to one with a nearly a 117 wRC+.