The Max Baseball League: Glossary

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This page is designed to assist with the various abbreviations that come up throughout the game. If you see anything that should be modified please let the commissioner know. Thanks to Andy Bushby for putting this together!

Hitting
Category	Name	Description	Formula
2B	Doubles	A batter is credited with a double when he hits the ball into play and safely reaches second base without an intervening error or attempt to put out another baserunner.
3B	Triples	A batter is credited with a triple when he hits the ball into play and safely reaches third base without an intervening error or attempt to put out another baserunner.
AB	At Bats	A batter is charged with an at-bat when he makes an out (unless credited with a sacrifice bunt or sacrifice fly), or reaches base on a base hit, on a fielding error or on a fielder's choice. A batter is not charged with an at-bat if he is credited with a walk or hit by pitch, or reaches base on catcher's interference.
AB/GIDP	At-Bats per Grounded Into Double Play	Divide the number of at-bats by the number of times grounding into double-plays.	AB/GIDP
AB/HR	At-Bats per Home Run	Divide the number of at-bats by the number of home runs hit.	AB/HR
AB/RBI	At-Bats per Runs Batted In	Divide the number of at-bats by the number of runs batted in.	AB/RBI
AO	Fly Outs	The total of all fly balls hit by the batter into outs, not including line drives.
AVG	Batting Average	Divide the number of base hits by the total number of at bats.	H/AB
BB	Bases on Balls (Walks)	A batter is credited with a base on balls (walk) when the pitcher throws four pitches outside of the strike zone during one plate appearance.
CS	Caught Stealing	A runner is charged with a caught stealing if he is put out attempting to advance to the next base without the ball having been hit into play.
G	Games Played	The total number of games in which the player appeared, whether as a starter or as a substitute.
GIDP	Ground into Double Plays	A batter is charged with grounding into a double play when he hits the ball into play on the ground, with none out or one out, and two outs occur before the play becomes dead, without an intervening error or misplay between putouts.
GO	Ground Outs	The total of all ground balls hit by the batter into outs, not including bunts.
GO/AO	Ground Outs/Fly Outs	Divide the total of all ground balls hit by the batter into outs, and not including bunts, by the total of all fly balls hit by the batter into outs, and not including line drives.	GO/AO
GSH	Grand Slam Home Runs	A batter is credited with a grand slam when he hits a home run with the bases loaded.
H	Hits	A batter is credited with a hit when he reaches first base (or any other base) safely on a ball hit into play in fair territory, after it touches the ground or a fence before being touched by a fielder, or which clears a fence, and when the fielder could not retire the batter with ordinary effort.
HBP	Hit by Pitch	The number of times the batter reached base as a result of being hit by a pitch.
HR	Home Runs	A batter is credited with a home run when he hits the ball over the outfield fence in fair territory, or hits it into play and subsequently scores on the play without an intervening error.
IBB	Intentional Walks	A batter is credited with an intentional base on balls (intentional walk) when the pitcher throws four pitches outside of the strike zone during one plate appearance, and the pitcher makes no attempt to throw the last pitch to the batter into the strike zone but purposely throws the ball wide to the catcher outside the catcher's box.
LIPS	Late Inning Pressure Situations	The batter's batting average in Late Inning Pressure Situations, which is any at-bat in the seventh inning or later, with the batting team either leading by one run, tied, or has the potential tying run on base, at bat, or on deck.
LOB	Left On Base	The total number of baserunners who were on base by any means, and did not score and/or were not put out, during all at-bats in which the batter made an out.
NP	Number of Pitches	The total number of pitches thrown during all of the batter's plate appearances.
OBP	On-base Percentage	Divide the total number of hits, bases on balls and times hit by pitch by the total of at-bats, bases on balls, times hit by pitch and sacrifice flies.	H+BB+HBP / AB+BB+HBP+SF
OPS	On-base Plus Slugging Percentage	Add the on-base percentage and slugging percentage, treating both numbers as integers.	OBP+SLG
PA/SO	Plate Appearances per Strikeout	Divide the total number of appearances by the number of strikeouts.	PA/SO
R	Runs Scored	The total number of runs scored by the player.
RBI	Runs Batted In	A batter is awarded an RBI on any run that scores as a direct result of a single, double, triple or home run; on a sacrifice fly or a sacrifice bunt on which a runner scores from third base; on a groundout (with less than two outs) on which a runner scores from third base; or on a hit-by-pitch or walk with the bases loaded.
SAC	Sacrifice Bunts	A batter is credited with a sacrifice when, before two are out, the batter advances one or more runners with a bunt and is put out at first base, or would have been put out except for a fielding error.
SB	Stolen Bases	A runner is credited with a stolen base when he advances to the next base, without the ball being hit into play, and unaided by a hit, a putout, an error, a force out, a fielder's choice, a passed ball, a wild pitch or a balk.
SB%	Stolen Base Percentage	Divide the total number of stolen bases by the player by the total number of stolen base attempts.	SB/SBA or SB/(SB+CS)
SF	Sacrifice Flies	A batter is credited with a sacrifice fly when he hits a fly ball or line drive with less than two outs that is caught by an outfielder, or by an infielder running into the outfield, and a runner scores after the catch.
SLG	Slugging Percentage	Divide the total bases recorded by the batter by the total number of at-bats.	TB/AB
SO	Strikeouts	A batter is charged with a strikeout when three strikes are recorded against him by the pitcher.
TB	Total Bases	A batter is credited with one total base for each single, two total bases for each double, three total bases for each triple and four total bases for each home run.	H+(2B2)+(3B3)+(HR*4)
TP	Triple Play	A batter is charged with hitting into a triple play when he hits the ball into play with no outs and three outs occur before the play becomes dead, without an intervening error or misplay between putouts.
TPA	Total Plate Appearances	Add the total number of at-bats, bases on balls, times hit by pitch and sacrifice flies.
XBH	Extra Base Hits	Add the total number of doubles, triples and home runs.	2B+3B+HR

Pitching

Category Name Description Formula

AO Fly Outs The total of all fly balls hit into outs against the pitcher by opposing batters, not including line drives.

APP Appearances The number of games in which a pitcher appeared but was not the starting pitcher.

AVG Opponents Batting Average Divide the total number of hits allowed by the pitcher by the total number of opponent at-bats. H/BF

BB Bases on Balls (Walks) A pitcher is charged with a base on balls (walk) when he throws four pitches outside of the strike zone during one plate appearance.

BB/9 Walks per Nine Innings Divide the total number of bases on balls (walks) allowed by the pitcher by his total number of innings pitched and multiply by nine. (BB/IP)*9

BF Batters Faced To determine the total number of batters faced by a pitcher, multiply innings pitched by three, and add all hits and walks allowed, batters hit by pitch and the number of batters that reached base on error against the pitcher.

BK Balks A pitcher is charged with a balk when, with a runner on base, the pitcher, while touching the pitching rubber, makes any motion naturally associated with his pitch and fails to make such delivery.

CG Complete Games A pitcher is credited with a complete game when he is the starting pitcher for his team and is the only pitcher for his team.

CGL Complete Game Losses A pitcher is credited with a complete game loss when he is the starting pitcher for his team and is the only pitcher for his team and his team loses the game.

CS Caught Stealing The total number of opposing baserunners caught stealing while the pitcher is in the game; a runner is charged with a caught stealing if he is put out attempting to advance to the next base without the ball having been hit into play.

ER Earned Runs The total number of earned runs allowed by the pitcher. An earned run is a run for which the pitcher is held accountable, and shall be charged every time a runner reaches home base by the aid of a hit, sacrifice bunt, sacrifice fly, stolen base, putout, fielder's choice, base on balls, hit batter, balk or wild pitch (including a wild pitch on third strike which permits a batter to reach first base) before fielding chances have been offered to put out the offensive team. In determining earned runs, the inning should be reconstructed without the errors (including catcher's interference) and passed balls, and the benefit of the doubt should always be given to the pitcher in determining which bases would have been reached by errorless play.

ERA Earned Run Average The total number of earned runs allowed by the pitcher, divided by his total innings pitched, multiplied by nine. (ER/IP)*9

G Games Played The total number of games in which the pitcher appeared, whether as the starter or as a reliever.

GF Games Finished A pitcher is credited with a game finished if he is the last relief pitcher for his team in a game and was not the starting pitcher.

GIDP Grounded Into Double Plays The total number of double plays hit into by opposing batters while the pitcher is in the game; a batter is charged with grounding into a double play when he hits the ball into play on the ground, with none out or one out, and two outs occur before the play becomes dead, without an intervening error or misplay between putouts

GO Ground Outs The total of all ground balls hit into outs against the pitcher by opposing batters, not including bunts.

GO/AO Ground Outs/ Fly Outs Ratio Divide the total of all ground balls hit into outs against the pitcher by opposing batters, and not including bunts, by the total of all fly balls hit into outs against the pitcher by opposing batters, and not including line drives. GO/AO

GS Games Started The total number of games in which the pitcher was the first to appear in the game for his team.

GSH Grand Slams The number of home runs allowed by the pitcher with the bases loaded.

H Hits The total number of hits allowed by the pitcher; the pitcher is charged with a hit allowed when the batter reaches first base (or any other base) safely on a ball hit into play in fair territory, after it touches the ground or a fence before being touched by a fielder, or which clears a fence, and when the fielder could not retire the batter with ordinary effort.

H/9 Hits per Nine Innings Divide the total number of hits allowed by the pitcher by his total number of innings pitched and multiply by nine. (H/IP)*9

HB Hit Batsmen The number of batters hit by a pitch.

HLD Hold A relief 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. A pitcher cannot finish the game and receive credit for a hold, nor can he earn a hold and a save in the same game.

HR Home Runs A pitcher is charged with yielding a home run any time an opposing batter hits the ball over the outfield fence in fair territory, or hits it into play and subsequently scores on the play without an intervening error.

I/GS Innings Per Games Started Divide the total number of innings pitched by the pitcher as a starting pitcher by the number of games started. I/GS

IBB Intentional Walks A pitcher is charged with an intentional base on balls (intentional walk) when he throws four pitches outside of the strike zone during one plate appearance, and makes no attempt to throw the last pitch to the batter into the strike zone but purposely throws the ball wide to the catcher outside the catcher's box.

IP Innings Pitched The total number of innings pitched by the pitcher. The pitcher is credited for one-third inning for each out he records.

IRA Inherited Runs Allowed A relief pitcher is charged with an inherited run allowed when he enters the game with a runner or runners on base and one or more of those runners scores while that relief pitcher is in the game.

K/9 Strikeouts per Nine Innings Divide the total number of strikeouts recorded by the pitcher by the total number of innings pitched, multiplied by nine. (K/IP)*9

K/BB Strikeout/Walk Ratio Divide the total number of strikeouts recorded by the pitcher by the total number of walks allowed. K/BB

L Losses The total number of losses charged to the pitcher. A pitcher is charged with the loss of the game if he is replaced when his team is behind in the score, or falls behind because of runs charged to him after he is replaced, and his team thereafter fails either to tie the score or gain the lead, regardless of how many innings he has pitched.

LIPS Late Inning Pressure Situations The batting average allowed by the pitcher to opposing hitters in Late Inning Pressure Situations, which is any at-bat in the seventh inning or later, with the batting team either leading by one run, tied, or has the potential tying run on base, at bat, or on deck.

LOB Left on Base The total number of baserunners who were on base by any means, and did not score and/or were not put out, during all at-bats in which the pitcher recorded an out.

MB/9 Baserunners per 9 Innings Divide the total number of hits and bases on balls (walks) allowed by the pitcher by his total number of innings pitched and multiply by nine. ((H+BB+HBP)/IP)*9

NP Number of Pitches Thrown The total number of pitches thrown by the pitcher.

OBA On-base Against Divide the total number of hits allowed, bases on balls allowed and batters hit by pitch by the total of the opposing batters' at-bats, bases on balls allowed, batters hit by pitch and sacrifice flies allowed. (H+BB+HBP)/(H+BB+HBP+SF)

P/GS Pitches per Start Divide the total number of pitches thrown by the pitcher by the total number of games started. P/GS

P/IP Pitches per Innings Pitched Divide the total number of pitches thrown by the pitcher by the total number of innings pitched. P/IP

PA Plate Appearances The total number of plate appearances by opposing batters against the pitcher, including all at-bats, bases on balls allowed, batters hit by pitch and sacrifice flies allowed.

PK Pick-offs The total number of runners picked off their original base while the pitcher is in the game.

R Runs The total number of runs allowed by the pitcher while he is in the game, as well as runners who reached base against the pitcher and subsequently scored in that inning after the pitcher had left the game.

RW Relief Wins A pitcher is credited with a relief win if he is not the starting pitcher in a game his team wins, and he is either the relief pitcher judged by the scorer to have been the most effective, or is the pitcher of record when his team assumes the lead and maintains it to the finish of the game.

SB Stolen Bases The total number of stolen bases recorded by opposing baserunners while the pitcher is in the game; a runner is credited with a stolen base when he advances to the next base, without the ball being hit into play, and unaided by a hit, a putout, an error, a force out, a fielder's choice, a passed ball, a wild pitch or a balk.

SHO Shutouts A pitcher is credited with a shutout when he pitches a complete game without allowing a run. When two or more pitchers combine to pitch a shutout, neither shall be awarded a shutout.

SLG Slugging Percentage Allowed Divide the total bases recorded by opposing batters by the total number of at-bats. TB/AB

SO Strikeouts A pitcher is credited with a strikeout whenever he records three strikes against a batter during one plate appearance and the third strike is either a swinging or called strike.

SV Saves A pitcher is credited with a save when he finishes a game won by his club, is not the winning pitcher, and either (a) enters the game with a lead of no more than three runs and pitches for at least one inning, (b) enters the game with the potential tying run either on base, or at bat, or on deck, or (c) pitches effectively for at least three innings.

SVO Save Opportunities A pitcher is credited with a save opportunity when he enters the game with a lead of no more than three runs or with the potential tying run either on base, or at bat, or on deck.

TB Total Bases The total number of total bases recorded by all opposing batters against the pitcher. A batter is credited with one total base for each single, two total bases for each double, three total bases for each triple and four total bases for each home run.

TP Triple Plays The total number of triple plays hit into by opposing batters while the pitcher is in the game; a batter is charged with hitting into a triple play when he hits the ball into play on the ground, with none out, and three outs occur before the play becomes dead, without an intervening error or misplay between putouts.

UR Unearned Runs A run that scores shall be unearned if the runner reaches first base after his time at bat is prolonged by a muffed foul fly, because of interference or obstruction or because of any fielding error. No run shall be earned when scored by a runner whose time on base is prolonged by an error, if such runner would have been put out by errorless play, or if the runner's advance is aided by an error, a passed ball, or defensive interference or obstruction, if the scorer judges that the run would not have scored without the aid of such misplay.

W Wins The starting pitcher is credited with a win if he has pitched at least five complete innings and his team not only is in the lead when he is replaced but remains in the lead the remainder of the game. When the starting pitcher is not credited with the win, the win shall be awarded to the relief pitcher judged by the scorer to have been the most effective, or who is the pitcher of record when his team assumes the lead and maintains it to the finish of the game.

WHIP Walks + Hits/Innings Pitched Divide the total number of hits and bases on balls (walks) allowed by the pitcher by his total number of innings pitched. (BB+H)/IP

WP Wild Pitches A pitcher is charged with a wild pitch when his pitch is so high, or so wide, or so low that the catcher does not stop and control the ball by ordinary effort, thereby permitting a runner or runners to advance.

WPCT Winning Percentage Divide the number of wins awarded to the pitcher by the total of wins and losses credited to the pitcher. W/G

XBA Extra Base Hits Allowed The total number of doubles, triples and home runs hit against the pitcher by opposing batters. 2B+3B+HR

Fielding

Category Name Description Formula

A Assists A fielder is credited with an assist any time he throws or deflects a batted or thrown ball in such a way that a putout results, or would have resulted except for a subsequent error by any fielder.

CS Caught Stealing The total number of opposing base runners caught stealing by the catcher. A runner is charged with a caught stealing if he is put out attempting to advance to the next base without the ball having been hit into play.

DER Defensive Efficiency Rating Defensive Efficiency Rating is the ratio of team defensive outs recorded in defensive opportunities. To determine Defensive Efficiency Rating for a team, divide the total number of hits in play allowed (not including home runs) by the total number of defensive opportunities (all balls hit into play, not including home runs) and subtract from one: 1-((H-HR)/(PA-HR-BB-HBP-SO)). (BF-H-K-BB-HBP-0.6*E)/(BF-HR-K

DP Double Plays A fielder is credited with participation in a double play if he earns a putout or an assist in a play when two or three outs are recorded on a play before the play becomes dead, unless an error or misplay intervenes between putouts.

E Errors A fielder is charged with an error whose wild throw permits a runner to reach a base safely, or advance to the next base, when in the scorer's judgment a good throw would have put out the runner or prevented him from advancing to the next base, or whose failure to stop, or try to stop, a batted or accurately thrown ball permits a runner to advance.

FPCT Fielding Percentage Divide the total number of putouts and assists recorded by the fielder, by the total number of putouts, assists and errors credited to the fielder. (TC-E)/TC

G Games Played The total number of games in which the player appeared defensively, whether as the starter or as a substitute.

INN Innings Played The total number of innings played by a fielder. The fielder is credited for one-third inning for each out recorded while he is on the field defensively.

OFA Outfield Assists An outfielder is credited with an assist when he throws or deflects a batted or thrown ball in such a way that a putout results, or would have resulted except for a subsequent error by any fielder.

PB Passed Balls A catcher is charged with a passed ball when he fails to hold or to control a legally pitched ball that should have been held or controlled with ordinary effort, thereby permitting a runner or runners to advance.

PO Putouts A putout is credited to a fielder when catches a fly ball or a line drive, whether fair or foul, catches a thrown ball which puts out a batter or runner, or tags a runner when the runner is off the base to which he legally is entitled.

RF Range Factor Add the total number of putouts and assists recorded by the fielder, multiply that total by nine, and divide by the number of innings played. 9*(PO+A)/INN

SB Stolen Bases (allowed) The total number of opposing base runners to steal a base against a catcher. A runner is credited with a stolen base when he advances to the next base, without the ball being hit into play, and unaided by a hit, a putout, an error, a force out, a fielder's choice, a passed ball, a wild pitch or a balk.

TC Total Chances The total number of putouts and assists credited to the fielder and errors charged to the fielder.

TP Triple Plays A fielder is credited with participation in a triple play if he earns a putout or an assist in a play when three outs are recorded on a play before the play becomes dead, unless an error or misplay intervenes between putouts.

Pitching
Category	Name	Description	Formula
AO	Fly Outs	The total of all fly balls hit into outs against the pitcher by opposing batters, not including line drives.
APP	Appearances	The number of games in which a pitcher appeared but was not the starting pitcher.
AVG	Opponents Batting Average	Divide the total number of hits allowed by the pitcher by the total number of opponent at-bats.	H/BF
BB	Bases on Balls (Walks)	A pitcher is charged with a base on balls (walk) when he throws four pitches outside of the strike zone during one plate appearance.
BB/9	Walks per Nine Innings	Divide the total number of bases on balls (walks) allowed by the pitcher by his total number of innings pitched and multiply by nine.	(BB/IP)*9
BF	Batters Faced	To determine the total number of batters faced by a pitcher, multiply innings pitched by three, and add all hits and walks allowed, batters hit by pitch and the number of batters that reached base on error against the pitcher.
BK	Balks	A pitcher is charged with a balk when, with a runner on base, the pitcher, while touching the pitching rubber, makes any motion naturally associated with his pitch and fails to make such delivery.
CG	Complete Games	A pitcher is credited with a complete game when he is the starting pitcher for his team and is the only pitcher for his team.
CGL	Complete Game Losses	A pitcher is credited with a complete game loss when he is the starting pitcher for his team and is the only pitcher for his team and his team loses the game.
CS	Caught Stealing	The total number of opposing baserunners caught stealing while the pitcher is in the game; a runner is charged with a caught stealing if he is put out attempting to advance to the next base without the ball having been hit into play.
ER	Earned Runs	The total number of earned runs allowed by the pitcher. An earned run is a run for which the pitcher is held accountable, and shall be charged every time a runner reaches home base by the aid of a hit, sacrifice bunt, sacrifice fly, stolen base, putout, fielder's choice, base on balls, hit batter, balk or wild pitch (including a wild pitch on third strike which permits a batter to reach first base) before fielding chances have been offered to put out the offensive team. In determining earned runs, the inning should be reconstructed without the errors (including catcher's interference) and passed balls, and the benefit of the doubt should always be given to the pitcher in determining which bases would have been reached by errorless play.
ERA	Earned Run Average	The total number of earned runs allowed by the pitcher, divided by his total innings pitched, multiplied by nine.	(ER/IP)*9
G	Games Played	The total number of games in which the pitcher appeared, whether as the starter or as a reliever.
GF	Games Finished	A pitcher is credited with a game finished if he is the last relief pitcher for his team in a game and was not the starting pitcher.
GIDP	Grounded Into Double Plays	The total number of double plays hit into by opposing batters while the pitcher is in the game; a batter is charged with grounding into a double play when he hits the ball into play on the ground, with none out or one out, and two outs occur before the play becomes dead, without an intervening error or misplay between putouts
GO	Ground Outs	The total of all ground balls hit into outs against the pitcher by opposing batters, not including bunts.
GO/AO	Ground Outs/ Fly Outs Ratio	Divide the total of all ground balls hit into outs against the pitcher by opposing batters, and not including bunts, by the total of all fly balls hit into outs against the pitcher by opposing batters, and not including line drives.	GO/AO
GS	Games Started	The total number of games in which the pitcher was the first to appear in the game for his team.
GSH	Grand Slams	The number of home runs allowed by the pitcher with the bases loaded.
H	Hits	The total number of hits allowed by the pitcher; the pitcher is charged with a hit allowed when the batter reaches first base (or any other base) safely on a ball hit into play in fair territory, after it touches the ground or a fence before being touched by a fielder, or which clears a fence, and when the fielder could not retire the batter with ordinary effort.
H/9	Hits per Nine Innings	Divide the total number of hits allowed by the pitcher by his total number of innings pitched and multiply by nine.	(H/IP)*9
HB	Hit Batsmen	The number of batters hit by a pitch.
HLD	Hold	A relief 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. A pitcher cannot finish the game and receive credit for a hold, nor can he earn a hold and a save in the same game.
HR	Home Runs	A pitcher is charged with yielding a home run any time an opposing batter hits the ball over the outfield fence in fair territory, or hits it into play and subsequently scores on the play without an intervening error.
I/GS	Innings Per Games Started	Divide the total number of innings pitched by the pitcher as a starting pitcher by the number of games started.	I/GS
IBB	Intentional Walks	A pitcher is charged with an intentional base on balls (intentional walk) when he throws four pitches outside of the strike zone during one plate appearance, and makes no attempt to throw the last pitch to the batter into the strike zone but purposely throws the ball wide to the catcher outside the catcher's box.
IP	Innings Pitched	The total number of innings pitched by the pitcher. The pitcher is credited for one-third inning for each out he records.
IRA	Inherited Runs Allowed	A relief pitcher is charged with an inherited run allowed when he enters the game with a runner or runners on base and one or more of those runners scores while that relief pitcher is in the game.
K/9	Strikeouts per Nine Innings	Divide the total number of strikeouts recorded by the pitcher by the total number of innings pitched, multiplied by nine.	(K/IP)*9
K/BB	Strikeout/Walk Ratio	Divide the total number of strikeouts recorded by the pitcher by the total number of walks allowed.	K/BB
L	Losses	The total number of losses charged to the pitcher. A pitcher is charged with the loss of the game if he is replaced when his team is behind in the score, or falls behind because of runs charged to him after he is replaced, and his team thereafter fails either to tie the score or gain the lead, regardless of how many innings he has pitched.
LIPS	Late Inning Pressure Situations	The batting average allowed by the pitcher to opposing hitters in Late Inning Pressure Situations, which is any at-bat in the seventh inning or later, with the batting team either leading by one run, tied, or has the potential tying run on base, at bat, or on deck.
LOB	Left on Base	The total number of baserunners who were on base by any means, and did not score and/or were not put out, during all at-bats in which the pitcher recorded an out.
MB/9	Baserunners per 9 Innings	Divide the total number of hits and bases on balls (walks) allowed by the pitcher by his total number of innings pitched and multiply by nine.	((H+BB+HBP)/IP)*9
NP	Number of Pitches Thrown	The total number of pitches thrown by the pitcher.
OBA	On-base Against	Divide the total number of hits allowed, bases on balls allowed and batters hit by pitch by the total of the opposing batters' at-bats, bases on balls allowed, batters hit by pitch and sacrifice flies allowed.	(H+BB+HBP)/(H+BB+HBP+SF)
P/GS	Pitches per Start	Divide the total number of pitches thrown by the pitcher by the total number of games started.	P/GS
P/IP	Pitches per Innings Pitched	Divide the total number of pitches thrown by the pitcher by the total number of innings pitched.	P/IP
PA	Plate Appearances	The total number of plate appearances by opposing batters against the pitcher, including all at-bats, bases on balls allowed, batters hit by pitch and sacrifice flies allowed.
PK	Pick-offs	The total number of runners picked off their original base while the pitcher is in the game.
R	Runs	The total number of runs allowed by the pitcher while he is in the game, as well as runners who reached base against the pitcher and subsequently scored in that inning after the pitcher had left the game.
RW	Relief Wins	A pitcher is credited with a relief win if he is not the starting pitcher in a game his team wins, and he is either the relief pitcher judged by the scorer to have been the most effective, or is the pitcher of record when his team assumes the lead and maintains it to the finish of the game.
SB	Stolen Bases	The total number of stolen bases recorded by opposing baserunners while the pitcher is in the game; a runner is credited with a stolen base when he advances to the next base, without the ball being hit into play, and unaided by a hit, a putout, an error, a force out, a fielder's choice, a passed ball, a wild pitch or a balk.
SHO	Shutouts	A pitcher is credited with a shutout when he pitches a complete game without allowing a run. When two or more pitchers combine to pitch a shutout, neither shall be awarded a shutout.
SLG	Slugging Percentage Allowed	Divide the total bases recorded by opposing batters by the total number of at-bats.	TB/AB
SO	Strikeouts	A pitcher is credited with a strikeout whenever he records three strikes against a batter during one plate appearance and the third strike is either a swinging or called strike.
SV	Saves	A pitcher is credited with a save when he finishes a game won by his club, is not the winning pitcher, and either (a) enters the game with a lead of no more than three runs and pitches for at least one inning, (b) enters the game with the potential tying run either on base, or at bat, or on deck, or (c) pitches effectively for at least three innings.
SVO	Save Opportunities	A pitcher is credited with a save opportunity when he enters the game with a lead of no more than three runs or with the potential tying run either on base, or at bat, or on deck.
TB	Total Bases	The total number of total bases recorded by all opposing batters against the pitcher. A batter is credited with one total base for each single, two total bases for each double, three total bases for each triple and four total bases for each home run.
TP	Triple Plays	The total number of triple plays hit into by opposing batters while the pitcher is in the game; a batter is charged with hitting into a triple play when he hits the ball into play on the ground, with none out, and three outs occur before the play becomes dead, without an intervening error or misplay between putouts.
UR	Unearned Runs	A run that scores shall be unearned if the runner reaches first base after his time at bat is prolonged by a muffed foul fly, because of interference or obstruction or because of any fielding error. No run shall be earned when scored by a runner whose time on base is prolonged by an error, if such runner would have been put out by errorless play, or if the runner's advance is aided by an error, a passed ball, or defensive interference or obstruction, if the scorer judges that the run would not have scored without the aid of such misplay.
W	Wins	The starting pitcher is credited with a win if he has pitched at least five complete innings and his team not only is in the lead when he is replaced but remains in the lead the remainder of the game. When the starting pitcher is not credited with the win, the win shall be awarded to the relief pitcher judged by the scorer to have been the most effective, or who is the pitcher of record when his team assumes the lead and maintains it to the finish of the game.
WHIP	Walks + Hits/Innings Pitched	Divide the total number of hits and bases on balls (walks) allowed by the pitcher by his total number of innings pitched.	(BB+H)/IP
WP	Wild Pitches	A pitcher is charged with a wild pitch when his pitch is so high, or so wide, or so low that the catcher does not stop and control the ball by ordinary effort, thereby permitting a runner or runners to advance.
WPCT	Winning Percentage	Divide the number of wins awarded to the pitcher by the total of wins and losses credited to the pitcher.	W/G
XBA	Extra Base Hits Allowed	The total number of doubles, triples and home runs hit against the pitcher by opposing batters.	2B+3B+HR

Fielding
Category	Name	Description	Formula
A	Assists	A fielder is credited with an assist any time he throws or deflects a batted or thrown ball in such a way that a putout results, or would have resulted except for a subsequent error by any fielder.
CS	Caught Stealing	The total number of opposing base runners caught stealing by the catcher. A runner is charged with a caught stealing if he is put out attempting to advance to the next base without the ball having been hit into play.
DER	Defensive Efficiency Rating	Defensive Efficiency Rating is the ratio of team defensive outs recorded in defensive opportunities. To determine Defensive Efficiency Rating for a team, divide the total number of hits in play allowed (not including home runs) by the total number of defensive opportunities (all balls hit into play, not including home runs) and subtract from one: 1-((H-HR)/(PA-HR-BB-HBP-SO)).	(BF-H-K-BB-HBP-0.6*E)/(BF-HR-K
DP	Double Plays	A fielder is credited with participation in a double play if he earns a putout or an assist in a play when two or three outs are recorded on a play before the play becomes dead, unless an error or misplay intervenes between putouts.
E	Errors	A fielder is charged with an error whose wild throw permits a runner to reach a base safely, or advance to the next base, when in the scorer's judgment a good throw would have put out the runner or prevented him from advancing to the next base, or whose failure to stop, or try to stop, a batted or accurately thrown ball permits a runner to advance.
FPCT	Fielding Percentage	Divide the total number of putouts and assists recorded by the fielder, by the total number of putouts, assists and errors credited to the fielder.	(TC-E)/TC
G	Games Played	The total number of games in which the player appeared defensively, whether as the starter or as a substitute.
INN	Innings Played	The total number of innings played by a fielder. The fielder is credited for one-third inning for each out recorded while he is on the field defensively.
OFA	Outfield Assists	An outfielder is credited with an assist when he throws or deflects a batted or thrown ball in such a way that a putout results, or would have resulted except for a subsequent error by any fielder.
PB	Passed Balls	A catcher is charged with a passed ball when he fails to hold or to control a legally pitched ball that should have been held or controlled with ordinary effort, thereby permitting a runner or runners to advance.
PO	Putouts	A putout is credited to a fielder when catches a fly ball or a line drive, whether fair or foul, catches a thrown ball which puts out a batter or runner, or tags a runner when the runner is off the base to which he legally is entitled.
RF	Range Factor	Add the total number of putouts and assists recorded by the fielder, multiply that total by nine, and divide by the number of innings played.	9*(PO+A)/INN
SB	Stolen Bases (allowed)	The total number of opposing base runners to steal a base against a catcher. A runner is credited with a stolen base when he advances to the next base, without the ball being hit into play, and unaided by a hit, a putout, an error, a force out, a fielder's choice, a passed ball, a wild pitch or a balk.
TC	Total Chances	The total number of putouts and assists credited to the fielder and errors charged to the fielder.
TP	Triple Plays	A fielder is credited with participation in a triple play if he earns a putout or an assist in a play when three outs are recorded on a play before the play becomes dead, unless an error or misplay intervenes between putouts.