Baseball Stats Abbreviations – What Do They Mean?

Hey everyone and welcome back! Today, we will be going through some of the most common baseball stats abbreviations and their stats abbreviations

The game of baseball is filled with tons of statistics. Some of the abbreviations used can be quite easy to understand, while others can be downright confusing.

I get a lot of questions about what this stat or that stat means, so I thought I would go over some of the most commonly used baseball stats abbreviations and some that may not be quite as common.

These abbreviations apply to softball as well. I hope this helps to clear up some confusion.

Baseball Stats Abbreviations

Let’s get started with batting and then work our way through 🙂

Batting Stats Abbreviations

AB = At Bat – An at bat is an official plate appearance that does not include a walk, being hit by a pitch, obstruction, sacrifice, or an interference call.

HR = Home Run – A home run is achieved by a batter who hits a thrown pitch over the outfield fence, or hits the ball and successfully touches all three bases and home plate with no defensive errors (In the park home run).

1B = Single – A single is scored when a batter hits the ball and successfully reaches first base without a defensive and softball batting stats abbreviations

2B = Double – A double is scored when a batter hits the ball and successfully reaches second base without a defensive error.

3B = Triple – A triple is scored when a batter hits the ball and successfully reaches third base without a defensive error

BB = Base on balls – More commonly known as a “walk”, a base on balls is achieved by a batter who receives 4 pitches out of the strike zone during an at bat. A walk will be considered an “unofficial at bat”.

IBB = Intentional base on balls – Also known as an intentional walk (IW), an intentional base on balls is scored when a pitcher delivers 4 pitches out of the strike zone on purpose.

HBP = Hit by pitch – If a batter is hit by a pitch, they are automatically awarded first base. If the bases happen to be loaded at the time, the batter is also credited with a run batted in. This is also the case with a BB and an IBB.

BA = Batting average – A hitter’s batting average is calculated by taking the number of hits divided by the number of “official” at bats.

OBP = On base percentage – A players on base percentage is how many times they reach base safely via a hit, walk, or hit by pitch divided by number of at bats, plus walks, plus hit by pitch, plus sacrifice flies. (Hits+Walks+Hit by pitch) / (At Bats+Walks+Hit by pitch+Sacrifice Flies). This is my favorite stat for determining a batter’s true value.

RBI = Runs batted in – A batter is credited with a run batted in when a runner already on base scores due to their action during an at bat, except when they ground into a double play, or if a defensive error occurs. A batter is also awarded an RBI for theirself for a home run. If a batter hits a home run with the bases loaded, they would be credited with 4 RBI’S.

SLG = Slugging average – Also known as slugging percentage, SLG is the total number of bases achieved divided by the total number of at bats.

OPS = On base plus slugging – A batters OPS is their on base percentage plus their slugging average.

XBH = Extra base hits – Extra base hits are any hit by a batter where they reach second base, third base, or home safely, without a defensive error.

TB = Total bases – Total bases are the number of bases a batter reaches safely. 1 for a single, 2 for a double, 3 for a triple and 4 for a home run.

LOB = Left on base – LOB is the total number of runners left on base at the end of an inning.

TA = Total average – A batter’s total average is as follows – Total bases + steals + hit by pitch + walks, minus caught stealing, divided by at bats, minus hits, plus caught stealing, plus grounded into double plays.  Here’s the mathematical equation (TB+SB+HBP+BB-CS)/(AB-H+CS+GIDP). Definitely one of the most confusing stats!

Pitching Stats Abbreviations

BB = Base on balls – A base on balls (walk), is awarded to the batter when a pitcher delivers 4 pitches out of the strike zone during an at bat.

CG = Complete game – A complete game is when a pitcher is the only player to pitch for their team during an entire game.

ER = Earned run – Earned runs are the total number of runs allowed by a pitcher that were not the result of a defensive error or a passed ball by the catcher.

ERA = Earned run average – A pitcher’s earned run average is the total earned runs given up, multiplied by 9 and divided by the baseball and softball pitching stats abbreviationstotal number of innings pitched.

ERA+ Adjusted ERA+ – Earned run average adjusted for the ballpark and the league average.

G = Games – The total number of times a pitcher pitches during the season.

GS = Games started – The total number of games in which a pitcher was the first person to pitch for their team in a game.

H = Hits allowed – The total number of hits allowed by the pitcher.

IP = Inning Pitched – The number of outs a team gets while a pitcher is pitching divided by 3 (because three outs per inning).

IP/GS = Inning Pitched / Games Started – Average number of innings pitched per game started.

K = Strikeout – A strikeout is a statistic recorded for both pitchers and batters, and is denoted by K. A strikeout looking is denoted by a ꓘ. The use of the K to denote a strikeout dates back to a journalist who scored games in order to reference them for his articles and he used a K.

L = Loss – A pitcher is given a loss if they were pitching when the opposing team had and kept the lead, and went on to win that game.

LOB% = Left-on-base percentage –  LOB% represents the percentage of baserunners a pitcher does not allow to score.

MV = Mound Visits – This is a new scoreboard stat at many ballparks since each team gets six mound visits over the course of a nine-inning game — not counting visits that include a pitching change — and each team will receive an additional visit for each extra inning.

MVR = Mound Visits Remaining – Instead of MV some ballparks are counting down with Mound Visits Remaining.

PC-ST = Pitch Count / Strikes – An individual pitcher’s total game pitches [Pitch Count] and [ST] his no. of strikes thrown within that PC.

QS = Quality Start – A game in which a starting pitcher completes at least six innings and permits no more than three earned runs.

SHO – Shutout – Number of complete games pitched with no runs allowed.

SO = Strikeout – Commonly noted as a K, the pitcher is credited with a strikeout when the batter receives 3 strikes during an at bat.

SV = Save – A save is awarded to a pitcher who enters the game with the lead and completes the game without giving up the lead. (1)The pitcher is not the winning pitcher or(2) the lead has to be 3 runs or less when they enter the game (3) The potential tying run is on base, at bat, or on deck.

W = Win – A pitcher is awarded a win if they are pitching when their team had the lead after 5 completed innings and ultimately went on to win the game.

W + S = Wins in Relief + Saves

WHIP = Walks and hits per innings pitched – The average number of hits and walks allowed by the pitcher per inning.

WP = Wild pitch – A pitcher is charged with a wild pitch when they throw a pitch so far out of the strike zone that the catcher is unable to field it, thereby allowing runners to advance at least one base or score a run. A wild pitch is not charged to the pitcher if there is no advancement by a runner, or there are no runners on base.

Fielding Stats AbbreviationsFielding stats abbreviations for baseball and softball

A = Assist – An assist is the number of outs recorded on a play where the player fielded the ball.

DP = Double Play – When two offensive players are ruled out within the same play.

DRS = Defensive Runs Saved – A player’s entire defensive performance by attempting to measure how many runs a defender saved. It takes into account errors, range, outfield arm and double-play ability.

E = Error – A fielder is charged with an error if they fail to make a play that they should have been able to make using “common effort”.

FP or FPCT = Fielding percentage – Fielding percentage is the total number of plays made, minus errors, divided by the total number of chances.

INN = Innings – The total number of innings that a player plays at one position.

OFA = Outfield Assist – An outfielder records an assist when he throws the ball into the infield and an out is recorded as a result.

PB = Pass Ball – A catcher is given a passed ball if he cannot hold onto a pitch that and as a result at least one runner moves up on the bases. This is a based on the official scorer’s judgment.

PO  = Putout – A fielder is credited with a putout he records the act of completing an out by stepping on the base for a forceout, tagging a runner, catching a batted ball, or catching a third strike.

UZR = Ultimate Zone Rating – A player’s entire defensive performance by attempting to measure how many runs a defender saved. UZR takes into account errors, range, outfield arm and double-play ability. Similar to DRS (Defensive Runs Saved) only a different formula.

Base Running Stats Abbreviations

CS = Caught stealing – A runner is considered caught stealing each time they are tagged out when trying to steal a base. (They didn’t make it to the next base before a defender tagged them out).

R = Runs – A base runner is credited with a run scored every time they reach home safely.Base running stats abbreviations for baseball and softball

SB = Stolen base – A runner is credited with a stolen base when they advance at least one base while the defense has control of the ball.

SB% = Stolen base percentage – Successfully stolen bases divided by the total number of attempted stolen bases.

SBA/ATT = Stolen base attempts – Number of times a runner has tried to steal a base.

General Baseball Stats Abbreviations

ARB – Arbitration eligible. Pre-Arb is before a player is arbitration eligible. Arb 1, Arb 2, Arb 3 and even sometimes Arb 4 is the year that a player is in arbitration.

E# =  Elimination Number – Also called the ‘tragic number, this number represents the number of wins by the leading team or losses by the trailing team which will eliminate the trailing team. The largest elimination number among the non-first place teams is the magic number for the leading team.

WCGB = Wild Card Games Back – In Major League Baseball this count will show many games back a team is from the Wild Card spot.

Baseball Positions by Number

  • 1 = Pitcher
  • 2 = Catcher
  • 3 = First Base
  • 4 = Second Base
  • 5 = Third Base
  • 6 = Shortstop
  • 7 = Left Field
  • 8 = Center Field
  • 9 = Right Field

I hope you found this article helpful. While we didn’t cover every stat, this list should get you familiar with most of the commonly used abbreviations.

If you happen to run across a statistic or abbreviation that you’re unsure of the meaning, or have any questions about the baseball stat abbreviations listed above, please feel free to leave a comment below and I will get you an answer A.S.A.P.

Thanks for stopping by and see you next time ~Jeremy

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18 thoughts on “Baseball Stats Abbreviations – What Do They Mean?

    1. Jeremy Post author

      Hi Kathy.
      SAC is commonly used to denote that a batter has been credited with a sacrifice hit.
      When a runner who is already on base is able to advance due to a hit ball, the batter is awarded with a “SAC fly” or “SAC bunt”.
      If you are not sure what a sacrifice is – Check Out This Article
      Have a great day and thanks for stopping by ~Jeremy


  2. Pingback: On This Date In Baseball History -

  3. SlyviaWMaisto

    I’ve been following your site for a long time now and finally got the courage
    to go ahead and give you a shout out from New Caney Tx!

    Just wanted to tell you keep up the excellent job!

    1. Jeremy Post author

      Thank you Slyvia!
      I know how confusing baseball stats and their abbreviations can be. I hope you found everything you were looking for and if you have any other questions, please let me know and I’ll be happy to help.
      Thanks for stopping by ~Jeremy

  4. Randy R. L.

    just got back online.Thanks for all the stat info.Highly informative and as some one else said very well presented. I always wondered how the slugging% was formulated(just knew the higher the better,,lol). Thanks again for keeping us well informed Jeremy

    1. Jeremy Post author

      You’re welcome Randy!
      I’m glad you found the article informative and helpful.
      If you need a hand with anything else, please let me know.
      Thanks for stopping by ~Jeremy

  5. Paul

    Having grown up and still living in Africa my sporting passions have always been cricket and rugby. However I love any sport with a bat and a ball involved and found your post most informative and interesting. I now know a lot more about baseball than I ever did and will follow your site with interest.
    Thanks Jeremy for a great post!

    1. Jeremy Post author

      Hey Paul!
      Thank you and You are most welcome.
      I’m not too familiar with cricket, but it looks really interesting to me.
      I’m glad you found the article informative and you are enjoying the site.
      If you have any questions, please let me know, I’m always happy to help.
      Thanks for stopping by and see you next time ~Jeremy

  6. melinda

    Very informative post, good for those new to baseball or just not as familiar with it. I am a fan of baseball so I knew most of them but not a couple were new to me. Thanks!

    1. Jeremy Post author

      You’re welcome Melinda!
      I’ll do a follow up soon with some more of the rarely seen stat abbreviations.
      Maybe I’ll get you on some of those 🙂
      Thanks for dropping by ~Jeremy

  7. alex

    that is very well said. I have never really understood all of the baseball meanings, but man you really explain it here. Thanks so much. Your information is very nice and well presented.


    1. Jeremy Post author

      Thank you Alex and you are most welcome!
      I hope you found everything you were looking for and if you need anything else, let me know, I’m always happy to help.
      Thanks for stopping by ~Jeremy

  8. Kathy

    Wow, that’s a lot of baseball abbreviations! I would imagine when you guys all get together it would sound like a foreign language to anyone who doesn’t know much about baseball!
    Good article, I enjoyed reading it. 🙂

    1. Jeremy Post author

      LOL Kathy!
      With all of the stats thrown around in conversation, I still sometimes get the feeling people are talking a language I don’t understand 🙂
      Thanks for dropping by and I’m glad you enjoyed the article ~Jeremy

    1. Jeremy Post author

      Thank you Jeff!
      I’m happy you found the article useful.
      Thanks for stopping by ~Jeremy


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