Creating a tool that considers the speed and movement of every pitch, the similarity measure allows the direct comparison of pitchers across various contexts.
Moving the strike zone up seems a simple, elegant solution to what ails offense. But won’t anybody think of the unintended consequences!?
How do we recalibrate our reliance on the radar gun for modern-day pitching evaluation?
Examining pitchers who’ve thrived early with good old-fashioned country hardball.
We know umpires don’t call the same strike zone for every count. What we didn’t know before now is that the inconsistency produces more correct calls.
A look back at what makes a good changeup, and a look ahead at who has the best ones.
What is an average curveball’s velocity? How many groundballs does the mean changeup generate? All your questions answered here.
Rethinking a pitch as two pitches (at least).
Is it possible to sell low on the second-best player in baseball? Probably.
Separating the useful spin from the rest.
A BP writer signs off.
How the Rockies have obtained and drafted slider-leaning pitchers.
PITCHf/x data is able to make a significant contribution to injury prediction.
In search of the unsequenceable hitter.
When a 95-mph fastball for one hitter is a 90-mph fastball for another.