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October 24, 2012 Painting the BlackOpposite DayGame One of the World Series features a lopsided pitching matchup. Justin Verlander is a superior pitcher to Barry Zito by every measure imaginable. So how do you sell this as an intriguing matchup? The FOX broadcast will probably focus on what Verlander and Zito have in common—the Cy Young. Zito won the award in 2002, his second full season in the majors, and Verlander took his home last winter. But it’s not what Verlander and Zito have in common that could make this entertaining; rather, it’s what separates them. Arsenal balance Zito threw none of his five pitches more than 31 percent of the time, according to Brooks Baseball. He threw each of his pitches at least 11 percent of the time, with three pitches—his four-seam fastball, sinker, and curveball—all within a small range of percentages. Verlander is more top-heavy. He threw his fastball 57 percent of the time, with 26 percent breaking balls, and another 17 percent changeups. You don’t need the Herfindahl-Hirschman Index to figure out which pitcher has the more balanced approach. Curveball usage The image below attempts to convey the differences. I took note, during each of the players’ postseason starts, of how long it took each pitcher to throw his first first-pitch curve of the game. The number inside the circle is the pitch count; Zito is represented by the orange circles:
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Great work, RJ. There is a ton of information hidden in the analysis of first-pitch tendencies of various pitchers, and checking out which guys are confident in a first-pitch "show me" curve is one of the highlights.
Also great notes on Zito. He has been throwing his fastball up in the zone his entire career, and the point about initial trajectory is right on. The tendency to rise above also helps the FB play up a tick on the effective velocity scale, as batters have to start the swing a little bit earlier in order to hit a pitch squarely that is up in the zone (or above). One of the funniest sights of the post-season has been batters taking late swings on 85-mph "fastballs."