Alright here's where I'd like to keep strictly formulas. Anyone can feel free to post here and ill edit this first post with more formulas that you guys add into the thread, i dont have much right now but im sure you guys will have no problem adding to the list... (When posting formulas please also define the variables as well so i can continue to update that list)

Formula List:

= (H + BB + HBP) / (AB + BB + HBP + SF)

On-base percentage (OBP)

= (1B) + (2B X 2) + (3B X 3) + (HR X 4) / ABs

Slugging percentage (SLG)

OPS= OBP + SLG

wOBA= (0.72xNIBB + 0.75xHBP + 0.90x1B + 0.92xRBOE + 1.24x2B + 1.56x3B +1.95xHR) / PA

IsoP= SLG - AVG

Gross Production Average= (1.8 * OBP + SLG) / 4

= PA * 1.356 * (GPA ^ 1.77)

Gross Production Average Runs

BABIP= (H-HR) / (AB-K-HR+SF)

Base Runs (Hitters)= A * (B / (B + C)) + D

Where

A = H + BB + HBP - HR - .5*IBB

B = (1.4*TB - .6*H - 3*HR + .1*(BB + HBP - IBB) + .9*(SB - CS - DP))*1.1

C = AB - H + CS + DP

D = HR

Base Runs (Pitchers)= A * (B / (B + C)) + D

Where

A = H + BB - HR

B = (1.4*(1.12*H + 4*HR) - .6*H - 3*HR + .1*BB)*1.1

C = 3*IP

D = HR

Seamhead's Calculating WAR Thread

WAR for Pitchers

WAR for Position Players

Where...

H= Hit

BB= Base on Balls (Walks)

HBP= Hit by Pitch

AB= At Bats

SF= Sacrifice Flys

TB= Total Bases

K= Strikeout

1B= Singles

2B= Doubles

3B= Triples

HR= Homerun

PA= Plate Appearances

NIBB= Non Intentional Base on Balls

RBOE= Reached Base on Error

GPA= Gross Production Average