Plate Discipline Stats by David Appelman April 28, 2008 About two years ago I attempted to delve further into plate discipline with two articles: Dissecting Plate Discipline Part 1, Part 2. And then a year later I took an additional look at plate discipline: More on Plate Discipline All batters now have plate discipline stats available dating back to 2005. Here’s what they are: O-Swing%: The percentage of pitches a batter swings at outside the strike zone. Z-Swing%: The percentage of pitches a batter swings at inside the strike zone. Swing%: The overall percentage of pitches a batter swings at. O-Contact%: The percentage of pitches a batter makes contact with outside the strike zone when swinging the bat. Z-Contact%: The percentage of pitches a batter makes contact with inside the strike zone when swinging the bat. Contact%: The overall percentage of a batter makes contact with when swinging the bat. Zone%: The overall percentage of pitches a batter sees inside the strike zone. What you’ll want to know is the major league averages for each stat: Season O-Swing Z-Swing Swing O-Contact Z-Contact Contact Zone 2005 20.3% 68.0% 46.0% 51.8% 88.3% 80.8% 53.8% 2006 23.5% 66.6% 46.1% 57.4% 88.5% 81.0% 52.6% 2007 25.0% 66.6% 45.9% 60.8% 88.2% 80.8% 50.3% All the location data is from Baseball Info Solutions and you can find all these stats in the player pages at the very bottom: Vladimir Guerrero