Joe Mauer Swings Away
A league-average hitter swings at about 46% of the pitches he sees. That much hasn’t really changed over at least the last decade. Roughly 5% of the time, a league-average hitter will end up in a 3-and-0 count. Roughly 7% of the time, a league-average hitter will swing at the next pitch. There’s nothing inherently wrong about swinging in a 3-and-0 count — the pitcher, often, will try to throw something straighter and over the plate. Often, then, there’s potential damage to be done. But a good deal might be learned about a hitter by examining his behavior in 3-and-0 counts. You can get a sense of a hitter’s eye, and you can get a sense of a hitter’s passiveness. Or, you might prefer, pickiness.
Joe Mauer is far from a league-average hitter, in both results and approach. For his career, Mauer has swung at about 37% of the pitches he’s seen, and last year he had the lowest swing rate in baseball. He swung at just about 8% of all first pitches, tied for the lowest rate in the league and against an average of 27%. Of all of Mauer’s career plate appearances, 9% have proceeded to a 3-and-0 count. In 3% of those plate appearances did Mauer offer at the next pitch. Joe Mauer has the eye to swing 3-and-0, but Joe Mauer has not often swung 3-and-0.