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Baseball Glossary of Statistics

BattingPitchingFielding
Batting
AB
At Bat
Number of times a player has been up to bat. Not counting the times the plate appearance resulted in a walk, hit by pitch, sacrifice bunt, or sacrifice fly.
AVG
Batting Average
Number of base hits per at bat. Naturally, a higher number is better.
Formula: (Base Hits) / (At Bats)
B
Bats
From the pitchers view, which side of the plate the batter stands.
BB
Base On Balls
When a batter is awarded first base as a result of four balls being pitched outside the strike zone.
Note: Intentional walks IBB are also included here.
BCH
Bench
Lineup position for player who showed up for the game but did not get any play time.
CS
Caught Stealing
A runner is caught stealing when, during an errorless play, he is:
thrown out while trying to steal a base
picked off a base while trying to advance
overslides while stealing and is put out
CS%
Caught Stealing Percentage
Percentage of players put out while trying to steal a base.
Formula: Caught Stealing / (Caught Stealing + Stolen Bases Allowed)
2B
Doubles
Number of hits that resulted in the batter reaching second base.
DP
Designated Player
Player designated to bat only for one of the 9 starting defensive players.
EP
Extra Player
Player added to lineup who bats as a 10th player in the linuep.
G
Games
Number of games the player has played in.
H
Hits
Number of hits a batter safely reaches a base on not including walks or sacrifices
HBP
Hit By Pitch
Number of times a batter is struck by a pitch.
HR
Home Runs
Number of hits that resulted in a home run.
No
Number
The players number for easy recognition by fans. Generally on the jersey of the player.
OBP
On Base Percentage
Represents the number of times the player reaches base compared to the number of plate appearances. The higher the number the better.
Formula: (Hits + Walks + Times Hit by Pitch) / (At Bats + Walks + Times Hit by Pitch + Sacrifice Flys)
OPS
On Base Plus Slugging
On-base percentage plus slugging percentage.
See OBP, above, and SLG, below, for definitions
PA
Plate Appearances
Number of times a batter faces a pitcher, regardless of outcome.
Formula: At Bats + Walks + Times Hit by Pitch + Sacrifice Bunts + Sacrifice Flys
ROE
Reached On Error
When a batter reaches base due to defensive error when under normal circumstances the batter would have clearly been out.
Counts as an at bat but not as a hit.
R
Runs
Number of times a batter crosses home plate.
RBI
Runs Batted In
Number of runners a batter moves across home plate resulting from his hit, walk or sacrifice.
SacB
Sacrifice Bunts
When a bunt results in the current base runner advancing a base and an out for the batter.
SacF
Sacrifice Flies
There must be fewer than 2 outs. The ball must be hit to the outfield. The batter is out - ball is caught on a fly. A runner on base scores on the play and the ball is caught. (The batter gets an RBI. The base runner gets a Run Scored. The Sacrifice Fly is not counted as an official At Bat. The Fielder gets credited with a Put Out.)
SB
Stolen Bases
Number of times a base runner successfully advances to the next base without the help of the hitter.
SLG
Slugging Percentage
Total number of bases a batter reaches divided by at bats.
SO
Strike Out
Number of times a batter swings and misses on three pitches.
TB
Total Bases
Total number of bases a batter has reached.
TEAM
Team
Team in which the player is currently on or was once a member of.
3B
Triples
Number of hits that resulted in the batter reaching third base.
YEAR
Year
When the stats were recorded.
Pitching
AO
Air Outs
When a batter hits the ball in the air (Fly Balls, Popups, and Line Drives) and an opposing defender catches it before it hits the ground or fence.
B
Balls
A ball is a pitch that is not a strike. If a batter accumulates four balls, he is awarded first base. The ball remains live.
BB
Base On Balls
When a batter is awarded first base as a result of four balls being pitched outside the strike zone.
Note: Intentional walks IBB are also included here.
BF
Batters Faced
Number of batters who made a plate appearance before the pitcher.
BK
Balks
Penalty for an illegal movement by the pitcher. The rule is designed to prevent pitchers from deliberately deceiving the runners. If called, baserunners advance one base.
CG
Complete Games
When a starting pitcher records all 27 outs. Game may end in a win or a loss.
CI
Catcher Interference
When a catcher intentionally or inadvertently physically hinders a batter from the opportunity to legally swing at a pitched ball, and for which the catcher is charged an error.
ER
Earned Runs
Any run that is directly attributable to the pitcher.
ERA
Earned Run Average
Represents the average number of runs given up by a pitcher during a game.
Formula: (Earned Runs x Innings Per Game) / (Innings Pitched)
FPB
First Pitch Balls
When the pitcher throws a ball to the batter during the first pitch of the at bat.
FPS
First Pitch Strikes
When the pitcher throws a strike to the batter during the first pitch of the at bat.
G
Games
Number of games the player has played in.
GO
Groundout
when a batter hits a ball on the ground to a fielder, who records an out by throwing to or stepping on first base. It can also occur when the batter reaches first base -- and the defense instead opts to record an out elsewhere via a fielder's choice.
GS
Games Started
Number of games a player was in the lineup when the first pitch was thrown.
H
Hits Against
The number of hits given up while pitching.
HBP
Hit By Pitch
Number of times a batter is struck by a pitch.
HR
Home Runs
Number of hits that resulted in a home run.
IBB
Intentional Base On Balls
When a pitcher intentionally throws four pitches far outside the strike zone to walk the batter.
Note: IBBs are included in the BB total.
INN
Innings Pitched
Cumulative number of innings (including fractional innings) pitched by a pitcher. A full inning pitched is 3 outs. A pitcher relieved after one out is represented by .1. After two outs is .2.
L
Losses
Number of games a particular pitcher's performance resulted in a loss.
No
Number
The players number for easy recognition by fans. Generally on the jersey of the player.
OBA
Opponent Batting Average
Percentage of hits against a pitcher.
Formula: (Hits) / (Batters Faced)-(Walks+HBP+Sac Flies+Sac Bunts+Catcher Interference)
PC
Pitch Count
The total number of pitches a pitcher has thrown.
R
Runs
Number of times a batter crosses home plate.
S
Strikes
A strike in baseball results when a batter swings at and misses a pitch, does not swing at a pitch in the strike zone, or hits a foul ball that is not caught by a fielder (unless he already has two strikes on him).
SacB
Sacrifice Bunts
When a bunt results in the current base runner advancing a base and an out for the batter.
SacF
Sacrifice Flies
There must be fewer than 2 outs. The ball must be hit to the outfield. The batter is out - ball is caught on a fly. A runner on base scores on the play and the ball is caught. (The batter gets an RBI. The base runner gets a Run Scored. The Sacrifice Fly is not counted as an official At Bat. The Fielder gets credited with a Put Out.)
SHO
Shut Outs
When a starting pitcher leaves the game without surrendering a run and is given a win for his performance.
SO
Strike Out
Number of times a batter swings and misses on three pitches.
SV
Saves
Number of times a relief pitcher finishes a game where the potential tying or winning run is on base, at home plate or in the on-deck circle. Also the number of times a relief pitcher pitches the final three innings of a win; or the number of times a reliever pitches one inning or more in which he protects a lead of three runs or less.
SVO
Save Opportunities
Number of times a relief pitcher enters a game in which one of the three situations under the definition of a save presents itself.
T
Throws
Hand in which the player throws the ball while pitching.
TEAM
Team
Team in which the player is currently on or was once a member of.
W
Wins
Number of games that resulted in a win for a pitcher or a team.
WHIP
Walks & Hits per Inning Pitched
Average number of walks and hits allowed by the pitcher per inning.
Formula: (Hits + Walks) / Innings
WP
Wild Pitches
Number of times a pitcher threw a ball, which was not handled by the catcher and resulted in a base runner advancing.
YEAR
Year
When the stats were recorded.
Fielding
A
Assists
Number of times a defensive player assisted on an out. Not counted if the play results in an error. Example: Batter hits a ball to the shortstop who throws to first base, where the batter is out. The shortstop gets an assist.
CS
Caught Stealing
A runner is caught stealing when, during an errorless play, he is:
thrown out while trying to steal a base
picked off a base while trying to advance
overslides while stealing and is put out
CS%
Caught Stealing Percentage
Percentage of players put out while trying to steal a base.
Formula: Caught Stealing / (Caught Stealing + Stolen Bases Allowed)
DP
Double Plays
When one continuing play results in two outs.
E
Error
When a fielder misplays a ball hit at him, which under normal circumstances would result in an out.
FLD%
Fielding Percentage
Number of attempts that resulted in an out compared to the number of total attempts.
Formula: (Putouts + Assists) / (Putouts + Assists + Errors)
FLEX
Flexible Player
Player chosen to play defense for the designated player.
G
Games
Number of games the player has played in.
GS
Games Started
Number of games a player was in the lineup when the first pitch was thrown.
INN
Innings Played
Cumulative number of innings (including fractional innings) played by a fielder. A full inning played is 3 outs. A player relieved after one out is represented by .1. After two outs is .2.
No
Number
The players number for easy recognition by fans. Generally on the jersey of the player.
PB
Passed Balls
Number of times a ball thrown by the pitcher was not handled by a catcher and resulted in a base runner advancing.
PO
Put Outs
Number of times a defensive player was the final player in a play, which resulted in an out.
Posn
Position
Any one of nine available field locations.
SBA
Stolen Bases Allowed
Number of times a catcher allows a base runner to steal a base.
T
Throws
Hand in which the player throws the ball while fielding.
TC
Total Chances
Putouts plus assists plus errors; total chances offered, not total chances accepted.
TEAM
Team
Team in which the player is currently on or was once a member of.
TP
Triple Plays
When one continuing play results in three outs.
YEAR
Year
When the stats were recorded.