Taylor Jungmann and Diminishing Marginal Utility
When faced with batters on base, Milwaukee Brewers righty Taylor Jungmann goes to his sinker more and throws lower in the zone. He hasn’t given up a home run on the sinker, and the pitch produces ground balls nearly three-quarters of the time. So why doesn’t Jungmann go to the sinker more often?
“What makes the sinker better is that I don’t throw it as much,” Jungmann told me before a game against San Francisco. “It makes it that much more effective because they aren’t looking for it. If I threw it every single pitch, my four-seamer would be better.”
Right now, Jungmann has found the right uses for his sinker. If he used it more, he’d get less value from each additional sinker. This is what makes evaluating pitches by their peripherals so difficult, especially in small samples. Sure, Mat Latos has gotten six whiffs on 24 changeups this year — for a percentage that’s almost twice the average changeup whiff rate — but that doesn’t make the pitch good.
