Ultimate zone rating
Encyclopedia
Ultimate zone rating is a sabermetric
statistic used to measure fielding. It compares the event that actually happened (hit/out/error) to data on similarly hit balls in the past to determine how much better or worse the fielder did than the "average" player. UZR divides a baseball field into multiple zones and assigns individual fielders responsibility for those zones.
UZR calculations are provided at Fangraphs
by Mitchel Lichtman.
Proponents of the statistic advise that defense is best judged over three-year spans, as a given year contains a relatively small sample and can result in large statistical swings. Major League Baseball
shortstop David Eckstein
says "a lot of defense is putting yourself in the right position to make plays." Josh Stein, San Diego Padres
director of baseball operations, said UZR "can be skewed if the player is not starting from the exact middle of [UZR's zone] chart."
Sabermetrics
Sabermetrics is the specialized analysis of baseball through objective, empirical evidence, specifically baseball statistics that measure in-game activity. The term is derived from the acronym SABR, which stands for the Society for American Baseball Research...
statistic used to measure fielding. It compares the event that actually happened (hit/out/error) to data on similarly hit balls in the past to determine how much better or worse the fielder did than the "average" player. UZR divides a baseball field into multiple zones and assigns individual fielders responsibility for those zones.
UZR calculations are provided at Fangraphs
Fangraphs
FanGraphs.com is a website run by Fangraphs Inc., located in Arlington, Virginia, and created and owned by David Appelman that provides statistics for every player in Major League Baseball history....
by Mitchel Lichtman.
Proponents of the statistic advise that defense is best judged over three-year spans, as a given year contains a relatively small sample and can result in large statistical swings. Major League Baseball
Major League Baseball
Major League Baseball is the highest level of professional baseball in the United States and Canada, consisting of teams that play in the National League and the American League...
shortstop David Eckstein
David Eckstein
David Mark Eckstein is a former American professional baseball player who was an infielder in Major League Baseball for ten seasons. He played college baseball for the University of Florida, and has played professionally for the Anaheim Angels, St. Louis Cardinals, Toronto Blue Jays, Arizona...
says "a lot of defense is putting yourself in the right position to make plays." Josh Stein, San Diego Padres
San Diego Padres
The San Diego Padres are a Major League Baseball team based in San Diego, California. They play in the National League Western Division. Founded in 1969, the Padres have won the National League Pennant twice, in 1984 and 1998, losing in the World Series both times...
director of baseball operations, said UZR "can be skewed if the player is not starting from the exact middle of [UZR's zone] chart."