Statistics Glossary
BaseHit tracks and displays a wide array of data and statistics. Here's a handy glossary of definitions and formulas
Batting Statistics (Standard)
G: GamesAB: At-bats
R: Runs scored
H: Hits
2B: Doubles
3B: Triples
HR: Home runs
RBI: Runs batted in
BB: Base on balls
SO: Strikeouts
SB: Stolen bases
CS: Caught stealing
AVG: Batting average, calculated as: ( H / AB )
OBP: On-base percentage, calculated as: ( H + BB + HBP / Plate Appearances )
SLG: Slugging percentage, calculated as: ( Total Bases / AB )
OPS: On Base Plus Slugging, calculated as: (OBP+SLG)
Batting Statistics (Extended)
PA: Plate appearancesTB: Total bases on hits, calculated as: ( 1B + 2 * 2B + 3 * 3B + 4 * HR)
GBFB: Ground ball ratio (Ground ball outs/Total outs) SF: Sacrifice flies
HBP: Hit by pitch
GDP: Grounded into double play
ROE: Reach base on error (as a batter, not as a baserunner)
XB: Extra base taken on a fly out (tagging up) or a hit (as a baserunner)
BRO: Baserunning out - thrown out attempting to take an extra base on a fly
out (tagging up) or a hit (as a baserunner)
SA: Secondary Average
RC: Runs Created
LWTS: Linear Weights : ( 0.46 * 1B ) + ( 0.80 * 2B ) + ( 1.02 * 3B ) + ( 1.40 * HR ) + ( 0.33 * ( BB + HBP ) ) + ( 0.30 * SB ) - ( 0.60 * CS ) - ( 0.50 * BRO ) - ( LgABH * ( AB - H )
LgABH = League Average "negative value" of an out, typically about 0.25, this is calculated for each league/season, and is done so that it is easier to compare LWTS for players across different seasons.
ABHR: At bats per home run, calculated as ( AB / HR )
TBPA: Total bases per plate appearance, calculated as ( TB/PA )
Pitching Statistics (Standard)
G: GamesIP: Innings pitched
W: Wins
L: Losses
SV: Saves
BS: Blown Saves
HLD: Holds
H: Hits
R: Runs
ER: Earned runs* (excludes runs scored due to fielding errors)
BB: Base on balls (includes intentional walks)
HBP: Hit by pitch
SO: Strikeouts
GS: Games started
QS: Quality starts (defined as 6+ innings pitched and 3 or less earned runs)
CG: Complete games (pitcher started and finished the game)
ShO: Shutouts (complete game and no runs surrendered)
ERA: Earned run average, the number of earned runs every nine innings, calculated as ( ER / IP ) * 9
WHIP: Walks and hits per inning pitched, calculated as ( ( BB + H ) / IP )
*Note - earned runs/unearned runs are scored differently in BaseHit than MLB - only runs scored by batters that reach base on an error are counted as unearned.
Tracking unearned runs in all potential game situations is tricky. On the plus side, we believe our method more accurately tracks a pitcher's full performance than MLB's rules, which can absolve a pitcher of anything that happens after an error.
Pitching Statistics (Extended)
SO9: Strikeouts per 9 innings, calculated as ( SO / IP ) * 9BB9: Walks per 9 innings, calculated as ( BB / IP ) * 9
SOBB: Strikeout to walk ratio, calculated as ( SO / BB )
GO: Groundouts
FO: Flyouts
FFO: Foul flyout HR: Home runs (surrendered)
IR: Inherited runners (runners on base when pitcher came in to game)
IRS: Inherited runners scored
OAVG: Opponent batting average
OOBP: Opponent on-base percentage
OSLG: Opponent slugging average
LWTS: calculated as ( IP/9 ) * ( LgERA - ERA )
LgERA = League average ERA calculated for each league/season.
BABIP: Batting average on balls in play
Fielding Statistics
G: GamesPO: Putouts
A: Assists
E: Errors
TC: Total chances, calculated as ( PO + A + E )
DP: Double plays
SB: Stolen bases allowed (catchers/pitchers) CS: Caught stealing (catchers/pitchers) CSP: Caught stealing percentage : CS/(CS/SB) PCT: Fielding percentage, calculated as ( ( PO + A ) / ( PO + A + E ) )
RNG: Range, calculated as ( TC / Innings Played ) * 9