Monday, June 29, 2009
Yankee Zone Rating and Pitching Bar Graphs through Games of June 28, 2009 (UZR added upon request)
CH: Playable Chances as defined by Stats Inc’s Zone Rating
PM: Plays Made
AvgPM: Estimated Plays Made over the same # of chances by an average defender
K/BF: Strikeouts divided by total batters faced
BB/BF: Walks allowed divided by total batters faced
HR/BF: Homers allowed divided by total batters faced
By request, here’s the team UZRs from FanGraphs.
exO (expected outs): The number of outs plus reached base errors that would be made by an average fielder given the distribution of balls in play while that fielder was on the field.
ARM (outfield arm runs): Outfielder’s get credit (plus or minus) depending on what the runners do on a hit or a fly ball out. A runner can stay put, advance, or get thrown out. A fielder will get credit not only if he throws out more than his share of runners, but also if he keeps more than his share of runners from advancing extra bases.
DPR (double play runs): The number of runs above or below average a fielder is, based on the number double plays versus the number forces at second they get, as compared to an average fielder at that position, given the speed and location of the ball and the handedness of the batter.
RngR (range runs): The number of runs above or below average a fielder is, determined by how the fielder is able to get to balls hit in his vicinity.
ErrR (error runs): The number of runs above or below average a fielder is, determined by the number of errors he makes as compared to an average fielder at that position given the same distribution of balls in play.
UZR (ultimate zone rating): The number of runs above or below average a fielder is in both range runs, outfield arm runs, double play runs and error runs combined.
UZR, RngR, and ErrR are pro-rated to Yankees’ expected outs.
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