Pitch F/X

Clayton Kershaw’s 2011 – Overview

If you were paying attention the last few seasons, it should have come as no surprise that Clayton Kershaw had the type of year he did in 2011. In each of his first three full big league seasons (2009-2011), the Dodgers’ left-handed starter has increased his season totals of strikeouts, innings pitched, and WAR. In addition to those counting stats, his BB/9 and WHIP have both decreased over the same period. As in most cases, stats (sabermetric in nature or otherwise) tell only part of the story.

You see, Kershaw is the only Cy Young Award Winner with the letters “c” and “y” in his first name (Zackary Grienke’s first name is actually Donald). Useless? Yes. But a very baseball-like piece of information.

Stats write the description of a player’s performance as it happens and with new metrics and concepts born each year, the predictive power of stats is increasing as well. Perhaps one of the most productive advances in baseball statdom is the introduction of Pitch F/X in October of 2006. Using a system of cameras invented by Sportvision, the trajectory, speed, and spin are recorded for each pitch thrown in the majors. MLB Advanced Media makes these data available to the public and they are extremely valuable for analyizing hitters and batters alike.

This is where I will attempt to begin with my amateur baseball analysis. With a background as an engineer, the physics of actual pitches meshed with the amazing number of data points make for an endless supply of explorations. With that in mind, I hope to lead off with my studies with a look at some of Kershaw’s 2011 Pitch F/X data. I am not sure exactly where it will end up, but the first order of business will be to examine his “stuff”. What pitches does he throw? What is his fastball velocity by inning? We’ll look at questions like these and probably some others as we begin to paint a picture of Kershaw’s 2011 Season.

That will serve as my tease for what will be the first in a series of posts. Until then, may spring training games fill the baseball-shaped void in your heart.