Timing the Game: How the MLB’s New Rules Change the Game

Abstract

The introduction of the pitch clock, along with other new rules such as larger bases and pickoff limits, has altered the pace and dynamics of Major League Baseball. This thesis examines the statistical impact of the pitch clock and associated rule changes on gameplay and fan engagement. By leveraging historical and current data from Baseball Reference, Statista, and FanGraphs, I use machine learning models to analyze trends in player performance, isolating the effects of these rule changes. I also test whether a player’s natural pitch tempo before the implementation of the pitch clock had any effect on their performance after. Finally, I analyze injury statistics to see if the pitch clock has had any affect on player health. Interviews with MLB personnel further add to these findings. Ultimately, this research aims to offer insights to teams and the league on how to adapt in this new era of baseball, while also predicting the sport’s future trajectory.