Tag Archives: pythagorean theorem of baseball

A Sabermetric Approach to Predicting Major League Standings

Bill James, the Father of Sabermetrics,  introduced his ”Pythagorean Theorem of Baseball”.  His theorem provides a formula to predict a team’s winning percentage (W%)  using the runs scored (RS) and runs allowed (RA) by the team for a season.  Sabermetrics uses mathematics (especially Statistics) to make objective baseball decisions. The Pythagorean Theorem of Baseball states: …

A New Sabermetrics Formula to Predict Postseason Teams

Bill James introduced his formula for predicting a team’s expected winning percentage (Expected W%) for a season. The formula is Expected W% = (Runs Scored)2 / [(Runs Scored)2 + (Runs Allowed)2] and is called the Pythagorean Theorem of Baseball.  Bill James’s rationale for his theorem was that the number of runs a team scored (RS) compared to the …