Sabermetric Glossary

Sabermetric Glossary
By Yahoo! Sports Staff
March 18, 2008

Sabermetric Tables: Batters | Pitchers

Note: bookmark this page so that you can return to it at a later date, as necessary.

BATTERS

Contact%
The percentage of at bats during which the hitter makes contact with the ball. The league average in 2007 was 80.8%.

BABIP
Batting average of balls in play; the percentage of batted balls that result in a hit, excluding home runs (as they don't fall in the field of play). The league average in 2007 was .306.

HR rate
The average number of at bats between each home run for the hitter. The league average in 2007 was 33.85.

BB rate
The average number of at bats between each base on balls for the hitter. The league average in 2007 was 10.43.

K rate
The average number of at bats between each strikeout for the hitter. The league average in 2007 was 5.21.

BB/K
The average number of base on balls between each strikeout for the hitter. The league average in 2007 was 0.5.

FB%
The percentage of the hitter's batted balls that are fly balls. The league average in 2007 was 36.0%.

GB%
The percentage of the hitter's batted balls that are ground balls. The league average in 2007 was 43.7%.

LD%
The percentage of the hitter's batted balls that are line drives. The league average in 2007 was 20.3%.

PITCHERS

OBP
The on-base percentage that opposing hitters compile versus the pitcher. The league average in 2007 was .336.

SLG
The slugging percentage that opposing hitters compile against the pitcher. The league average in 2007 was .423.

BB/9
The number of walks that a pitcher issues per nine innings pitched. The league average in 2007 was 3.33.

K/9
The number of strikeouts that a pitcher accumulates per nine innings pitched. The league average in 2007 was 6.67.

K/BB
The number of base on balls that a pitcher issues per strikeout accumulated. The league average in 2007 was 2.00.

HR/9
The number of home runs that a pitcher surrenders per nine innings pitched. The league average in 2007 was 1.03.

BABIP
Batting average of balls in play; the percentage of batted balls that result in a hit, excluding home runs (as they don't fall in the field of play). The league average in 2007 was .306.

LOB%
Left on base percentage, also referred to as strand rate; the percentage of baserunners that a pitcher does not allow to score. The league average in 2007 was 70.7%.

SB
The number of stolen bases that opposing players compile against the pitcher.

CS
The numbers of times that an opposing player is caught stealing by the pitcher.

FB%
The percentage of batted balls versus the pitcher that are fly balls. The league average in 2007 was 36.0%.

GB%
The percentage of batted balls versus the pitcher that are ground balls. The league average in 2007 was 43.6%.

LD%
The percentage of batted balls versus the pitcher that are line drives. The league average in 2007 was 20.3%.

GF
Games finished; a pitcher is credited with a game finished if he is the last pitcher to pitch for his team, excluding a starting pitcher who pitches a complete game.

SVOP
The number of save opportunities compiled by the pitcher; the conditions required for a pitcher to be credited with a save opportunity can be found here.

HLD
The number of holds compiled by the pitcher; a pitcher is credited with a hold any time he enters a game in a save situation, records at least one out and leaves the game never having relinquished the lead.

QS
The number of quality starts compiled by the pitcher; a pitcher is credited with a quality start any time he completes at least six innings and allows no more than three earned runs.

Updated on Tuesday, Mar 18, 2008 1:53 pm, EDT

Email to a Friend | View Popular