MLB (Major League Baseball)- is a professional baseball organization. MLB organization is made up of the American League and the National League. Baseball has many abbreviations, acronyms, numbers and statistics and one has to know them to understand the baseball language. I will give a list of some of them to help the readers have an easy time anytime they come across these acronyms.

**On Base Percentage /Batting Average /Slugging Percentage**

On Base Percentage is the Measure of the player’s rate of reaching base to plate appearances. Batting Average is the measure of a player’s rate of recording hits to make outs. Slugging Percentage is the measure of the total bases accumulation rate to make outs by a player.

**OPS-On Base Percentage and Sluggish Percentage**

This measures the ability of a player to get on base and to hit for power. It is an effective way of measuring the offensive contribution of a player.

**ISO-Isolated Power**

It is the measure of the ability of a player to record more bases with a single hit. If a player has high speed and power high ISO values are recorded. Also referred to as, power potential.

**wOBA**

Weighted on Base Average is the measure of the linear weight of each possible outcome of a plate appearance.

**wRC**

Weighted Runs Created determines the runs created by a single batter. It measures the sane ways as OPS and gives the contribution of a batter to the league average.

**BABIP**

Batting Average on Balls in Play- it is the measure of batted balls rate of landing for hits in the playing field. It is also referred to as the measure of players luck.

**ERA**

Earned Run Average- This measures the overall effectiveness of a player by recording the number of earned runs a pitcher gives up compared to the number of outs their team can record with the pitcher on the mound

**WHIP**

Walks and Hits per Innings Pitched- this measures the number of baserunners a pitcher will allow for every inning pitched. The measure judges the opposing batters ability to reach base.

**xFIP**

Expected Fielding Independent Pitching- the measure standardizes the home run term so as to account for the differences in the park size and the luck in home run rates.

**tERA**

True Era- tracks the flight of the ball and determines each ball’s expected outcome in the play.

UZR- Ultimate Zone Rating- this is the measure of the ability of a defensive player to make plays within specific areas of the field. The field is divided into 78 zones, and the ability of a player to make plays in every of this zones is compared to the ability of other players in the same position.

**WAR**

Wins above Replacement- this is the measure of how many extra wins a single player would result when added to a particular team. Each player’s ability is compared against a player of average talent that can be available to any team.

**Pk- Pickoffs**

This is the number of times a runner gets picked off base by a pitcher.

**Pivot Percentage**

To get this value, the number of double plays by a pivot man is divided by a number of opportunities.

**PkOf Throw/Runner**

This is the number of the pick-off throws in the game.

**Quality start**

A quality start is a start in which a pitcher works either six or more innings while still allowing either three or few earned runs.

**Quick and Slow Hooks**

A Quick Hook describes the removal of a pitcher who has only pitched less than six innings and has also given up three runs or less. If a pitcher pitches 9 and more innings r allows 7 or more runs, or the combined innings and runs pitched add up to 13, this is called a Slow Hook.

**Range Factor**

The range factor value is arrived at by multiplying by nine the number of chances (putouts +Assists) and dividing by the number of defensive innings.