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Most Common Baseball Stats Abbreviations

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Baseball is a statistical game and if you love it, you must know its stats right. After all, the stats are not only figures on a piece of paper. They tell a tale about an individual’s performance. For instance, if you check out team stats, you can easily predict whether the players are better at playing defensively or offensively. 

So, to better understand the statistics in the game, you must understand all the baseball stat abbreviations. These statistics are helpful for reporters, broadcasters, and people indulging in betting on baseball.

In this guide, we will share with you some commonly used baseball abbreviations stats in pitching, batting, and fielding. 

1: Stats Abbreviations for Batting

Stats Abbreviations



AVG – Batting Average


It measures a batter’s percentage for the number of times he/she gets on base during at-bats. Hence, a 250-batting average means that a player has scored 50% or 250 hits out of 500 at-bats.



OBP – On Base Percentage

OBP is useful for measuring a player’s slugging percentage and on-base percentage. It’s calculated by taking the sum of a player’s number of walks, at-bats, and hit by pitches.


OBP = (H + BB) / AB


AB – At bats

It is a player’s turn at bat. During this time, the batter and pitcher face off while attempting to score runs. 


SLG – Slugging Percentage

It is used for measuring how many times a batter safely reaches first base after hitting a home run, single, double, or triple. 

SLG = Total number of bases/ at-bats

HR – Home Runs

It is attained when a batter hits a ball with force and it breaks through the fielder’s circle around the home plate, landing in fair territory far from first base. 


It is one of the most thrilling plays in baseball, as it leads to victory for at-bat team or puts them closer to victory. 


GIDPO – Grounded into Double Play Opportunities

It describes when a player hits a ball two times in one play. For instance, when a player gets to the first base and is further forced to return to second base after being hit by a batted ball.  


 2: Stats Abbreviations for Fielding

Stats Abbreviations


O – Outs

This term describes a condition where a player is declared out by the umpire. Outs are counted in the game after every inning. The first out is called when a batter is running and advances to the home plater without getting out. And, the last out is when all players are declared out, and the winning run has been scored. 

INN – Innings Played

It describes a point when a batter hits the ball and also refers to when a catcher sets up his/her position.  


E - Errors

A fielding error occurs when a player commits an illegal action like failing to touch their glove on the ground on a catch or running on the field. 


Some common types of errors are:


Error of Throwing: When a fielder throws a wild ball and it hits someone else or throws a ball that’s not caught. 

Error of Catching: When a fielder fails to catch a ball thrown at him/her or he/she drops the ball. 


3. Stats Abbreviations for Pitching

Stats Abbreviations


ERA – Earned Run Average 

This statistic measures number of earned runs enabled by a pitcher in a baseball. ERA shows how effectively a pitcher runs from scoring against them. These particular statistics help in evaluating pitchers while predicting how well they’ll do in upcoming games. 

W - Wins

These are total played winning games and are useful for ranking teams. Wins are for a team that scores higher runs compared to the opponents over a specific period. For instance, if one team manages to score six runs in their first innings and the opponent scores 2 runs in their second innings, then the first team wins the game. 

K - Strikeouts

It is a type of out in this game. These are recorded when a batter makes contact with a ball while the catcher or pitcher doesn’t catch it. 


Advanced Baseball Stats are Changing the Face of Baseball

Now, let’s have a look at the advanced baseball abbreviations to understand the player’s performance. It is useful for tracking a player’s performance, creating new strategies for winning games, and recognizing trends in play. These also help in finding new ways of enhancing player’s performance via practice and training. 

Stats Abbreviations



wOBA – Weighted On Base Average 

It shows the total value of total all-bats. It depends on the number of times every player reaches their walks, base, gets caught stealing, or is hit by pitch. 


BABIP – Batting Average on Balls in Play

It shows the balls’ percentage put in play that didn’t result in a hit. 


WPA – Win Probability Added

This helps in measuring a player’s efficiency at getting on base. For calculating WPA, one needs to understand how many runners are on base when a player gets to first base, as well as the number of outs. 

WPA = Number of Times an Individual Reaches first base with less than two outs / Number of times they are in scoring position

ISO – Isolated Power

It shows how many extra bases one gets from raw power, according to their batting average plus average slugging percentage. 




So, the next time when someone asks you “What does SO mean in baseball” or “how a particular player is performing,” you can easily give your viewpoint based on these baseball acronyms. Some of them are universal, while others are specific to a particular league or team. Nonetheless, it’s a great idea to understand baseball stats abbreviations to better understand the game. With a good understanding of these abbreviations, you can even give good betting advice to someone who indulges in sports betting



  1. What is PO in baseball?

The term "PO" in baseball refers to "Put Out." The play made by a fielder against a batter or baserunner that results in an out being recorded is called a putout. This can be stopping a baserunner in their tracks, catching a batted ball in the air, or making a play to retire a baserunner. Putouts are attributed to specific fielders according to their role in recording outs during a game and are one of the main defensive metrics monitored in baseball.

  1. What role does ERA play in pitching statistics?

The Earned Run Average is referred to as ERA. It measures how many earned runs a pitcher surrenders on average for every nine innings thrown. Since it shows that the pitcher is allowing fewer runs, lower ERA readings are indicative of greater pitching performance.

  1. What does SLG stand for in batting statistics?

Slugging Percentage is referred to as SLG. It counts how many bases a batter accumulates overall in each at-bat. SLG provides an all-encompassing picture of a batter's power at the plate by including extra-base hits, such as doubles, triples, and home runs in addition to hits.

  1. What does pitching metrics' definition of WHIP mean?

Walks plus Hits per Inning Pitched is referred to as WHIP. It determines how many walks and hits a pitcher gives up on average every inning to give an idea of how well they stop the opposition from getting on base. Better control and efficacy in pitching are indicated by a lower WHIP.

  1. Could you elaborate on the meaning of BABIP in more complex baseball statistics?

Batting Average on Balls in Play is referred to as BABIP. With home runs and strikeouts excluded, it gauges how frequently balls placed in play by a batter result in hits. BABIP is a useful metric for determining whether a player's ability to get hits is influenced by talent or chance while making contact with the ball. It is also good for making predictions at some good baseball betting resources.

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