Team performances could be based on more than RPG-residual and BABIP, but could also integrate team Saved Runs, team UZR
, the Total Zone ratings from Baseball-Reference, or the summed player totals from Michael Humphreys' Wizardry.
Some websites, such as FanGraphs, are dedicated to the analysis and reporting of the most esoteric of baseball stats like UZR
is a measure of the actual number of runs a player saves because of his defense.
According to UZR
, the Mariners' defense went from 21 runs (relative to the MLB average defense) in 2008 to + 86 runs in 2009.
If you're a ballplayer, you probably think more, for example, about how this or that kind of glove webbing might work for you than you do about UZR
and whether that or Plus/Minus is a fairer indication of your fielding performance.
The Ultimate Zone Ratings (UZR
) by Mitchel Lichtman (21) are the state of the art in complex fielding analysis based on zones.