Josh calculates the called strike zone areas for umpires in 2011.
The proliferation of sabermetrics serves as a reminder—or a harbinger—of the limits of baseball performance.
Did Josh Willingham have a weakness exposed in 2011 that was hidden before?
What can plate discipline statistics tell us about the future?
Measuring the size of the area in which pitchers are getting swings, and how much this tells us about how good they are.
A look into an alternate plate discipline metric that takes a very different approach to evaluating swings than O-swing.
John Lackey has struggled mightily since joining the Red Sox. A look into the causes of his bad performance.
Why Porcello has stuggled to live up to his hotshot prospect hype.
Another look into the mystery of DIPS and BABIP. Do pitchers with good changeups allow weaker contact?
Why aren’t balls dropping in for him?
A look into batter and pitcher strategies depending on count.
How Williams compares to batters today—and how that underscores a point.
Analysis of Ubaldo Jimenez’s 2011 performance using PITCHf/x data.
An update on Josh Kalk’s “anatomy of a pitch” series: What makes a four-seam successful.
Tyler Clippard has one of the best fastballs in the league. What makes it so effective?