Baseball Stats Abbreviations for Fantasy Baseball


Written by

Michael Rogers



Leo Hagenes

baseball stats abbreviations

Have you ever found yourself absorbed in the excitement of a baseball game, only to encounter baseball acronyms within on-screen displays and box scores? These puzzling combinations of letters and numbers can leave even the most dedicated fans scratching their heads.

Fret not; in this article, we journeyed to define the complex baseball stats abbreviations. Alongside decoding the batting and pitching stats, we’ll spotlight the often-overlooked parts of baseball fielding stats!

Batting Stats Abbreviations


When it comes to batting statistics, understanding baseball abbreviations stats is essential for evaluating a player’s performance. Here are some key abbreviations you’ll encounter:

  • AVG (Batting Average) – The player’s hit rate per at-bat.
  • OBP (On-Base Percentage) – When a player reaches base, encompassing hits, walks, and hit-by-pitches.
  • SLG (Slugging Percentage) – A gauge of a player’s power-hitting ability.
  • OPS (On-Base Plus Slugging) – The combined total of a player’s OBP and SLG, offering a comprehensive assessment of their offensive capabilities.
  • HR (Home Runs) – When a player hits the ball beyond the ballpark.
  • RBI (Runs Batted In) – The number of runs a player has driven in.
  • R (Runs Scored) – The number of runs a player crosses home plate for.
  • SB (Stolen Bases) – The number of bases stolen by a player.
  • BB (Walks) – The number of times a player is granted a base on balls (walks).
  • SO (Strikeouts) – The number of times a player strikes out.

Baserunning Stats Abbreviations


Base running stats abbreviations highlight a player’s speed and efficiency on the basepaths. Here are a few you’ll come across:

  • SB (Stolen Bases): Represents the number of successful base thefts.
  • CS (Caught Stealing): Indicates when a player endeavors to steal a base but gets tagged out.
  • INN (Innings Caught): represents the total number of innings a catcher has played behind the plate during a game or over a specific period.
  • PB (Passed Balls Allowed): It counts the number of times a catcher fails to successfully catch or control a pitch that should have been caught, allowing baserunners to advance.
  • SB-ATT (Stolen Bases Allowed – Stealing Attempts): Calculates the net number of stolen bases a catcher allows after accounting for all the attempted stolen bases against them.
  • CS% (Runners Caught Stealing Percentage): Indicates the catcher’s success rate in throwing out baserunners who attempt to steal a base.
  • PIK (Runners Picked Off): Counts the number of opposing baserunners picked off and tagged out by the catcher while attempting to take an extra base.
  • CI (Catcher’s Interference): Tracks the number of times a batter is awarded first base due to interference by the catcher during the batter’s swing.

Pitching Stats Abbreviations


Pitching is a critical aspect of baseball, and its pitching stats come with their own set of abbreviations:

  • ERA (Earned Run Average) – The average number of earned runs a pitcher concedes per nine innings.
  • WHIP (Walks plus Hits per Inning Pitched) – A measure of a pitcher’s control and effectiveness.
  • K/9 (Strikeouts per Nine Innings) – The average number of strikeouts a pitcher registers per nine innings.
  • BB/9 (Walks per Nine Innings) – The average number of walks a pitcher issues per nine innings.
  • H/9 (Hits per Nine Innings) – The average number of hits a pitcher allows per nine innings.
  • CG (Complete Games) – The quantity of games a pitcher finishes without relief.
  • SHO (Shutouts) – The number of games in which a pitcher prevents the opposition from scoring any runs.
  • W (Wins) – The number of games won by a pitcher’s team when they start.
  • L (Losses) – The number of games lost by a pitcher’s team when they start.
  • SV (Saves) – The number of games a relief pitcher completes to secure a win.

Fielding Stats Abbreviations


Fielding stats provide insights into a player’s defensive prowess. Here are a few important ones:

  • FPCT (Fielding Percentage) – The ratio of putouts and assists to total opportunities (putouts + assists + errors).
  • E (Errors) – The number of blunders made by a fielder, leading to the advancement of a baserunner or extra at-bats.
  • TC (Total Chances) – The overall count of defensive plays a fielder participates in (putouts + assists + errors).
  • A (Assists) – When a fielder contributes with a throw to aid in recording an out.
  • PO (Putouts) – The times when a fielder records an out.

Other Related Abbreviations


In the realm of baseball statistics, myriad abbreviations cater to specialized areas like advanced baseball stats or league-specific metrics (MLB stats). For instance, you might come across:

  • GP (Games Played) – The number of games a player has taken part in.
  • AB (At-Bats) – The number of times a player bats.
  • IBB (Intentional Walks) – The instances in which a player receives a walk because the opposing team deliberately walks them.
  • HBP (Hit by Pitch) – The number of times a player is struck by a pitch.
  • GDP (Ground into Double Play) – The instances when a player grounds into a double play, leading to two outs.
  • SAC (Sacrifice) – The instances in which a player successfully sacrifices to advance a baserunner.
  • OOO (Out of Options) – Refers to a player who cannot be sent to the minor leagues without clearing waivers.


In baseball, stats are the language experts and analysts use to break down the game. Whether following batting averages, diving into advanced metrics, or trying to make sense of fielding statistics, apprehending the abbreviations is key to unlocking the game’s deeper nuances.

So, the next time you watch a game or peruse a box score, you are proficient enough to decipher the abbreviations, appreciating the beauty of baseball. Welcome the world of baseball stats abbreviations, and let them enhance your baseball experience.

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