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Wednesday, March 1, 2000
MLB Statistics Glossary


 

BATTING STATISTICS
#P/PAPitches seen per plate appearance
2BDoubles
3BTriples
ABAt-bats
AvgBatting average
H divided by AB
BBBases on balls
BB/KWalks Per Strikeout
BB/PAWalks Per Plate Appearance
CI Catcher Interference
CSCaught stealing
FBFly balls hit, excluding home runs
GGames played
G/FGround ball/fly ball ratio
GB divided by FB
GIDPGrounded into double play
H Hits
HBPHit by pitch
HR Home runs
IBB Intentional bases on balls
IsoP Isolated Power
(Slugging Percentage - Batting Average)
LOB Runners left on base
OBP On-base percentage
(H + BB + HBP) divided by (AB + BB + HBP + SF)
OPS On-base percentage plus slugging percentage. See OBP, above, and Slg, below, for definitions
OW% Offensive winning percentage. The theoretical winning percentage of a team comprising nine of the same players (e.g. nine Ken Griffey Jrs.).
1) Figure runs created per 27 outs [Note: Total outs = (AB - H + C + GIDP + SH + SF)]. 2) Divide by league average runs per game. 3) Square the result. 4) Divide that figure by 1 + itself
Qualified year-to-date In order to qualify for batting titles in averaged categories (Avg, Slg, OBP, OPS, RC, OW%, #P/PA, G/F), a player must average at least 3.1 plate appearances for every game his team has played. Sorting by qualified year-to-date excludes all players not currently on pace to reach that minimum
R Runs
RBI Runs batted in
RC Runs created
[(H + BB + HBP - CS - GIDP) times (Total bases + .26[BB - IBB + HBP] + .52[SH + SF + SB])] divided by (AB + BB + HBP + SH+ SF)
RC27 Runs created per 27 outs (Estimates how many runs per game a team made up of nine of the same player would score)
SB Stolen bases
SecA Secondary Average (A way to look at a player's extra bases gained, independent of Batting Average)
(TB - H + BB + SB - CS) / AB
SF Sacrifice flies
SH Sacrifice hits
Slg Slugging percentage
TB divided by AB
SO Strikeouts
TB Total bases
Hits + 2B + (3B times 2) + (HR times 3)
TPA Total plate appearances
AB + BB + HBP + SF + SH + times reached on defensive interference
WAR Short-hand for wins above replacement. This stat measures the number of wins a player contributes relative to a freely available minor leaguer. OWAR is the offensive compenent and DWAR is the defensive component. The sum of the two is the total WAR. For more on WAR, read this piece from David Schoenfield.
XBH Extra Base Hits
2B + 3B + HR

PITCHING STATISTICS
#P/IP Pitches thrown per inning
#P/GS Pitches thrown per start
#Pit Pitches thrown
2B Doubles allowed
3B Triples allowed
AGS Average Game Score. See Game Score, below
Avg Batting average allowed
BB Bases on balls
BIPA Balls In Play Average. Batting Average Against, not including home runs or strikeouts.
Bk Balks
BlSv Blown saves. See SvOp, below, for definition of a save situation
CG Complete games
CS Runners caught stealing
CW Cheap Wins. Wins in games started that are not Quality Starts.
Dec Decision (Win, loss)
DIPS ERA A pitcher's ERA, independent of the defense behind him. This formula, based on essays by Voros McCracken, assumes that all pitchers have consistent BIPA (See Above), and adjusts accordingly. The DIPS ratios on ESPN use the DIPS 2.0 formula, are not park-adjusted, and do not adjust for knuckleball pitchers.
ER Earned runs
ERA Earned-run average
(ER times 9) divided by IP
ERC Component ERA. A pitcher's ERA based on the hits and walks he allowed, rather than actual runs.
ERC% Ratio of Component ERA to actual ERA
FB Fly balls hit against
G/F Ground ball/fly ball ratio against
GB divided by FB
GB Ground balls hit against
GIDP Grounded into double plays against
GF Games finished
GS Games started
GSc Game Score. Start with 50 points. Add 1 point for each out recorded, (3 points per inning). Add 2 points for each inning completed after the 4th. Add 1 point for each strikeout. Subtract 2 points for each hit allowed. Subtract 4 points for each earned run allowed. Subtract 2 points for each unearned run allowed. Subtract 1 point for each walk.
H Hits against
Hld Holds. Earned when a relief pitcher enters a game in a save situation (see SvOp, below, for definition), records at least one out, and leaves the game without having given up the lead
HR Home runs allowed
IBB Intentional bases on balls
IP Innings pitched
IR Inherited runners. Runners on base when a relief pitcher enters a game
L Losses
OBP On-base percentage allowed. See OBP in Batting Statistics, above, for definition of OBP
ORuns Opponents' runs scored (average, per nine innings pitched) while the pitcher of record.
PFR Power/Finesse Ratio Strikeouts Plus Walks Divided By Innings Pitched
Qualified year-to-date In order to qualify for pitching titles in averaged categories (ERA, WPct, #P/IP, RS, ORuns, Slg, OBP, Avg, CS%, G/F), a player must average at least one inning pitched for every game his team has played. Sorting by qualified year-to-date excludes all players not currently on pace to reach that minimum
QS Quality starts
R Runs
RBI Runs batted in allowed
Rel Relief decision (Save, blown save, hold)
RS Run support. Team's runs scored (average, per 9 innings pitched) while the pitcher of record
SB Stolen bases allowed
SF Sacrifice flies allowed
SH Sacrifice hits allowed
ShO Shutouts
Slg Slugging percentage allowed. See Slg in Batting Statistics, above, for definition
SO Strikeouts
Sv Saves. Earned when a pitcher finishes a game without having given up the lead after entering in a save situation (see SvOp, below, for definition)
SvOp Save opportunities. When a pitcher 1) enters the game with a lead of three or fewer runs and pitches at least one inning, 2) enters the game with the potential tying run on base, at bat, or on deck, or 3) pitches three or more innings with a lead and is credited with a save by the official scorer
TBF Total batters faced
TL Tough Losses. Losses in games started that are Quality Starts.
WHIP Walks plus hits divided by Innings Pitched
W Wins
WPct Winning percentage
Wins divided by (Wins + losses)
WP Wild pitches

FIELDING STATISTICS
A Assists
CERA Catcher's earned-run average. Earned-run average of club's pitchers with a particular catcher behind the plate
CS Runners caught stealing
CS% Percentage of runners caught stealing
DP Double plays
E Errors
FPct Fielding percentage
(PO + A) divided by (PO + A + E)
G Games played
GS Games started
Inn Innings
PB Passed balls
PCS Pitchers' caught stealing. Total runners caught stealing when the player who initiates the fielding play is the pitcher
PO Putouts
POA Pickoff attempts
Qualified year-to-date In order to qualify for fielding titles in averaged categories (FPct., RF, CS%, CERA), a player must meet the following qualifiers: Catchers must play 1/2 of their team's games; Pitchers must average at least one inning pitched for each of their team's games; Position players must play 2/3 of their team's games. Sorting by qualified year-to-date excludes all players not currently on pace to reach that minimum
RF Range factor
(PO + A) divided by 9 innings
SBA Stolen bases allowed
TC Total chances