# Formula

BB/9 = 9 × Walks( Innings Pitched + (Outs Pitched / 3) )

Where,

ABHR - at bats per home run.

Walks (BB) - The number of times the pitchers has walked the batter.

Innings Pitched - The number of complete innings the pitcher has thrown.

Outs Pitched - The number of outs (Partial innings) the pitcher has thrown. Each out is 1/3 of an inning.

BB/9 - Number of walks per inning pitched.

# Formula

BB/K = WalksStrikeouts

Where,

Walks(BB) - The number of times the batter has walked.

Strikeouts - The number of times the batter has struck out.

BB/K - The walk to strikeout ratio of the hitter.

# Formula

BPF = ( Runs Scored Home + Runs Against Home ) Homes Games( Runs Scored Away + Runs Against Away )Away Games

Where,

BPF - batting park factor.

Runs Scored Home - The number of runs scored by team while at home.

Runs Against Home - The number of runs scored against the team while at home.

Home Games - The number of runs played at home.

Runs Scored Away - The number of runs scored by team while at away games.

Runs Against Away - The number of runs scored against the team while at away games.

Away Games - The number of runs played at Away.

Batting Park Factor(BPF) is metric that compares total runs scored for home and away games.

# Formula

PTB = (0.89 × ((1.255 × (Hits - Home Runs))) + (4 × Home Runs)) + (0.56 × (Walks + Hit by Pitch - Intentional Base on Balls))

Component ERA = ((((Hits + Walks + Hit by Pitch) × PTB)/(Batters Faced by Pitcher × (Innings Pitched + (Outs Pitched / 3))) × 9) - 0.56

Where,

Hits (H) - The number of hits the pitcher has allowed.

Home Runs (HR) - The number of home runs the pitcher has allowed.

Walks(BB) - The number of times the batter has walked.

Batters Hit(HBP) - The number of times the pitcher has hit the batter with a pitch.

Intentional Bases on Balls (IBB) - The number of times the pitcher has intentional walked a batter.

Batters Faced (BF) - The number of batters the pitcher has faced.

Innings Pitched - The number of complete innings the pitcher has thrown.

Outs Pitched - The number of outs (Partial innings) the pitcher has thrown. Each out is 1/3 of an inning.

# Formula

DICE = 3.00 + (13 × Home Runs)+(3 ×(Walks+Hit by Pitch))-(2 × Strikeouts)Innings Pitched+(Outs Pitched/3)

Where,

DICE - defense independent component ERA

Walks(BB) - The number of times the pitchers has walked the batter.

Strikeouts - The number of times the pitchers has struck the batter out.

Home Runs(HR) - The number of home runs the pitcher has allowed.

Batters Hit (HBP) - The number of times the pitcher has hit the batter with a pitch.

Innings Pitched - The number of complete innings the pitcher has thrown.

Outs Pitched - The number of outs (Partial innings) the pitcher has thrown. Each out is 1/3 of an inning.

# Formula

ERA = Earned Runs AllowedInnings Pitched × Innings in a Regulation Time

Where,

ERA - Earned Run Average.

Earned Runs - The number of earned runs the pitcher has allowed.

Innings Pitched - The number of complete innings the pitcher has thrown.

Outs Pitched - The number of outs (Partial innings) the pitcher has thrown. Each out is 1/3 of an inning.

Game Innings - The number of regular innings in the baseball league.(mostly 6 or 7 or 9 innings)

# Formula

EqA = (Hits + Total Bases + (1.5 × (Walks + Hit by Pitch)) + Stolen Bases + Sacrifice Hits + Sacrifice Flies) (At Bats + Walks + Hit by Pitch + Sacrifice Hits + Sacrifice Flies + Caught Stealing + (Stolen Bases / 3))

Where,

EqA -Equivalent Average.

Hits - The number of hits by the batter.

Total Bases - The total number of bases the batter has achieved.

Walks(BB) - The number of times the batter has walked.

Batters Hit (HBP) - The number of times the batter has hit by pitch.

Stolen Bases (SB) - The total number of bases stolen by the runner.

Sacrifice Hits - The total number of sacrifice hits the batter has produced.

Sacrifice Flies - The total number of sacrifice flies the batter has produced.

At Bats - The number of times the batter has been at bat

Caught Stealing (CS) - The number of times the runner has caught stealing.

# Formula

FPCT = (put outs + assists)(put outs + assists + errors)

Where,

FPCT - fielding percentage

Put Outs (PO) - The number of times a fielder has put a player out.

Assists (A) - The number of assist by a fielder.An assist occurs for every fielder that touches the ball between when it is hit and a pull out occurs.

Error - The number of errors committed by the fielder.

# Formula

FIP = ((13 × Home Runs) + (3 × Walks) - (2 × Strikeouts))(Innings Pitched + (Outs Pitched / 3))

Where,

FIP - fielding independent pitching

Walks (BB) - The number of times the pitchers has walked the batter.

Strikeouts - The number of times the pitchers has struck the batter out.

Home Runs(HR) - The number of home runs the pitcher has allowed.

Innings Pitched - The number of complete innings the pitcher has thrown.

Outs Pitched - The number of outs (Partial innings) the pitcher has thrown. Each out is 1/3 of an inning.

# Formula

GB/FB = Ground BallsFly Balls

Where,

GB/FB - ground ball to fly ball ratio.

Ground Balls - The number of ground balls the batter has produced.

Fly Balls - The number of fly balls the batter has produced.

# Formula

GO/AO = Ground OutsFly Outs

Where,

GO/AO - ground outs to fly outs ratio.

Ground Outs - The number of ground outs the batter has produced.

Fly Outs - The number of fly outs the batter has produced.

# Formula

GPA = ((1.8 × On Base Percentage) + Slugging Percentage) 4

Where,

GPA - gross production average.

On Base Percentage (OBP) - The On Base Percentage of the hitter.

Slugging Average (SLG) - The batting average of hitter.

# Formula

H/9 = (Hits × 9)(Innings Pitched + (Outs (Partial Innings) Pitched / 3))

Where,

H/9 - Hits per 9 Innings.

Hits (H) - The number of hits the pitcher has allowed.

Innings Pitched - The number of complete innings the pitcher has thrown.

Outs Pitched - The number of outs (Partial innings) the pitcher has thrown. Each out is 1/3 of an inning.

# Formula

IP/GS = (Innings Pitched + (Outs (Partial Innings) Pitched / 3))Game Starts

Where,

IP/GS - Innings Pitched per Game.

Game Starts - The number of games the pitcher has started.

Innings Pitched - The number of complete innings the pitcher has thrown.

Outs Pitched - The number of outs (Partial innings) the pitcher has thrown. Each out is 1/3 of an inning.

# Formula

ISO = Slugging Percentage - Batting Average

Where,

ISO - simple isolated power.

Batting Average (BA) - The batting average of the hitter.

Slugging Average (SLG) - The batting average of hitter.

# Formula

K/BB = StrikeoutsWalks

Where,

K/BB - strikeout to walk ratio.

Walks(BB) - The number of times the pitchers has walked the batter.

Strikeouts - The number of times the pitchers has struck the batter out.

# Formula

LOB% = (Hits + Walks + Hit by Pitch - Runs)(Hits + Walks + Hit by Pitch - (1.4 × Home Runs))

Where,

LOB% - left on base percentage.

Hits (H) - The number of hits the pitcher has allowed.

Walks(BB) - The number of times the pitchers has walked the batter.

Runs(R) - The number of runs a pitcher has allowed.

Hit by Pitch (HBP) - The number of times the batter has hit by a pitch.

Home Runs(HR) - The number of home runs the pitcher has allowed.

# Formula

OBP = (hits + walks + hit by pitch)(at-bats + walks + hit by pitch + sacrifice flies)

Where,

OBP - on base percentage.

Hits (H) - The number of hits the pitcher has allowed.

Walks(BB) - The number of times the pitchers has walked the batter.

Sacrifice Flies - The number of sacrifice flies the batter has produced.

At Bats - The number of times the batter has been at bat.

Hit by Pitch (HBP) - The number of times the batter has hit by a pitch.

# Formula

OBPS = On Base Percentage + Slugging Percentage

Where,

OBPS - on base plus slugging.

On Base Percentage (OBP) - The On Base Percentage of the hitter.

Slugging Average (SLG) - The batting average of hitter.

# Formula

PA/SO = Plate AppearancesStrikeouts

Where,

PA/SO - plate appearances per strikeout.

Plate Appearances - The number of times the batter has appeared at the plate.

Strikeouts - The number of times the batter has struck out.

# Formula

OBA = Hits(Batter Faced - Walks - Hit by Pitch - Sacrifice Hits - Sacrifice Flies - Catchers Interference)

Where,

OBA - opponents batting average.

Hits (H) - The number of hits the pitcher has allowed.

Walks(BB) - The number of times the pitchers has walked the batter.

Sacrifice Flies - The number of sacrifice flies the batter has produced.

Hits (H) - The number of hits the pitcher has allowed.

Hit by Pitch (HBP) - The number of times the batter has hit by a pitch.

Batters Faced (BF) - The number of batters the pitcher has faced.

Sacrifice Hits - The number of sacrifice hits the batter has produced.

Catcher Interference (CINT) - The number of times catcher interference has been recorded on a play.

# Formula

PFR = (Strikeouts + Walks)(Innings Pitched + (Outs (Partial Innings) Pitched / 3))

Where,

PFR - power finesse ratio.

Walks(BB) - The number of times the pitchers has walked the batter.

Innings Pitched - The number of complete innings the pitcher has thrown.

Outs Pitched - The number of outs (Partial innings) the pitcher has thrown. Each out is 1/3 of an inning.

Strikeouts - The number of times the pitchers has struck the batter out.

# Formula

RA = Innings per Regulation Game × (Runs / (Innings Pitched + (Outs (Partial Innings) Pitched / 3)) )

Where,

RA- run average.

Earned Runs - The number of earned runs the pitcher has allowed.

Game Innings - The number of regular innings in the baseball league.(mostly 6 or 7 or 9 innings)

Innings Pitched - The number of complete innings the pitcher has thrown.

Outs Pitched - The number of outs (Partial innings) the pitcher has thrown. Each out is 1/3 of an inning.

# Formula

RC = ((Hits + Walks) × Total Bases)(At Bats + Walks)

Where,

RC - runs created

Hits (H) - The number of hits the pitcher has allowed.

Walks(BB) - The number of times the pitchers has walked the batter.

At Bats - The number of times the batter has been at bat.

Total Bases - The total number of bases the batter has achieved.

# Formula

RC = (Standard Innings per Game × (Putouts + Assists))(Innings Played + (Outs Played / 3))

Where,

Put Outs (PO) - The number of times a fielder has put a player out.

Assists (A) - The number of assist by a fielder.An assist occurs for every fielder that touches the ball between when it is hit and a pull out occurs.

Game Innings - The number of regular innings in the baseball league.(mostly 6 or 7 or 9 innings)

Innings Pitched - The number of complete innings the pitcher has thrown.

Outs Pitched - The number of outs (Partial innings) the pitcher has thrown. Each out is 1/3 of an inning.

# Formula

Formula1:

RP = Runs + Runs Batted In - Home Runs

Formula2:

RP = (Runs + Runs Batted In)2

Where,

RP - Runs produced

Home Runs(HR) - The number of home runs the pitcher has allowed.

Runs - The number of runs the batter has produced.

RBI - The number of runs batted in

# Formula

SB% = Stolen Bases(Stolen Bases + Caught Stealing)

Where,

SB% - Stolen base percentage.

Stolen Bases (SB) - The number of stolen bases by the runner.

Caught Stealing (CS) - The number of times the runner has been caught stealing.

# Formula

SLG = (1 base hits + (2 × 2 base hits) + (3 × 3 base hits) + (4 × home runs))at bats

Where,

SLG - slugging percentage.

The number of 1 base hits made by the player.

The number of 2 base hits made by the player.

The number of 3 base hits made by the player.

Home Runs(HR) - The number of home runs made by the player.

At Bats - The number of times the batter has been at bat.

# Formula

SV% = SavesSave Opportunities

Where,

Save Percentage (SV%) - The save percentage of a pitcher.

Saves - The number of times the pitcher has saved a game.

Save Opportunities - The number of Opportunities the pitcher has had to save a game.

# Formula

TA = (Total Bases + Hit by Pitch + Walks + Stolen Base)(At Bats - Hits + Caught Stealing + Ground Into Double Play)

Where,

Total Average (TA) - The total average of the hitter.

Hits (H) - The number of hits by the batter.

Walks(BB) - The number of times the batter has walked .

At Bats - The number of times the batter has been at bat.

Total Bases - The total number of bases the batter has achieved.

Hit by Pitch (HBP) - The number of times the batter has hit by a pitch.

Stolen Bases (SB) - The number of stolen bases by the runner.

Caught Stealing (CS) - The number of times the runner has been caught stealing.

Ground into Double Play - The number of times the batter has ground into double play.

# Formula

TB = 1 base hits + (2 × 2 base hits) + (3 × 3 base hits) + (4 × home runs)

Where,

Total Bases(TA) - The total bases the hitter has produced.

1 base hits - The number of 1 base hits made by the player.

2 base hits - The number of 2 base hits made by the player.

3 base hits - The number of 3 base hits made by the player.

Home Runs(HR) - The number of home runs made by the player.

# Formula

TC = Put outs + Assists + Errors

Where,

Total Chances (TC) - The total number of playes the fielder has participated.

Put Outs (PO) - The number of times a fielder has put a player out.

Assists (A) - The number of assist by a fielder.An assist occurs for every fielder that touches the ball between when it is hit and a pull out occurs.

Error - The number of errors committed by the fielder.

# Formula

TOB = Hits + Walks + Hit by Pitch

Where,

Times on Base (TOB) - The number of times the batter has been on base.

Hits (H) - The number of hits by the batter.

Walks(BB) - The number of times the batter has been walked .

Hit by Pitch (HBP) - The number of times the batter has hit by a pitch.

# Formula

WHIP = (Walks + Hits)(Innings Pitched + (Outs (Partial Innings) Pitched / 3))

Where,

WHIP - The number of walks and hits per inning pitched.

Hits (H) - The number of hits by the batter.

Walks(BB) - The number of times the batter has walked .

Innings Pitched - The number of complete innings the pitcher has thrown.

Outs Pitched - The number of outs (Partial innings) the pitcher has thrown. Each out is 1/3 of an inning.

# Formula

XR = (.50 × 1 Base Hits) + (.72 × 2 Base Hits) + (1.04 × 3 Base Hits) + (1.44 × Home Runs) + (.34 × (Hit by Pitch + Walks - Intentional Walks)) + (.25 × Intentional Walks) + (.18 × Stolen Bases) + (-.32 × Caught Stealing) + (-.090 × (At Bats - Hits - Strikeouts)) + (-.098 × Strikeouts) + (-.37 × Ground into Double Play) + (.37 × Sacrifice Fly) + (.04 × Sacrifice Hit)

Where,

Extrapolated Runs (XR) - The number of runs that the hitter contributed to the team.

Hits (H) - The number of hits by the batter.

Walks(BB) - The number of times the batter has walked .

Hit by Pitch (HBP) - The number of times the batter has hit by a pitch.

At Bats - The number of times the batter has been at bat.

Total Bases - The total number of bases the batter has achieved.

Hit by Pitch (HBP) - The number of times the batter has hit by a pitch.

Stolen Bases (SB) - The number of stolen bases by the runner.

Caught Stealing (CS) - The number of times the runner has been caught stealing.

Ground into Double Play - The number of times the batter has ground into double play.

1 base hits - The number of 1 base hits made by the player.

2 base hits - The number of 2 base hits made by the player.

3 base hits - The number of 3 base hits made by the player.

Intentional Bases on Balls (IBB) - The number of times the batter has internationaly walked by a pitcher.

# Formula

WPCT = (2 × Wins + Ties)(2 × Total Games Played) × 100

Where,

WPCT - wining percentage.

Wins - The number of games wins.

Losses - The number of games losses.

Ties - The number of games drawn (no result).

# Formula

PE = (Runs Scored)2(Runs Scored)2) + (Runs Allowed)2)

Where,

Pythagorean Expectation (PE) - pythagorean expectation of the team.

Runs Scored - The number of runs the team has recorded.

Runs Allowed - The number of runs the team has allowed.

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# Formula

Pitching Speed in Miles Per Hour = (League Distance × 0.3048)(Time in seconds × 0.44704)

Pitching Speed in Feet Per Second = League DistanceTime in seconds

Baseball :

Baseball is a bat-and-ball game played between two opposing teams who take turns batting and fielding.

History :

The history of baseball in the U.S can be traced to the 19th century, when amateurs played a baseball-like game by their own informal rules using homemade equipment. The popularity of the sport inspired the semi-professional national baseball clubs in the 1860s.

Ten Greatest Baseball Players :

Babe Ruth, Willie Mays, Barry Bonds, Ted Williams, Hank Aaron, Walter Johnson, Ty Cobb, Stan Musial, Honus Wagner, Roger Clemens

Baseball Rules :

The Official Baseball Rules govern all professional play in the United States and Canada, including the World Baseball Classic. The complete rules are published as the Official Baseball Rules at MLB.com, the official web site of Major League Baseball in the United States and Canada.