RESEARCH: Fly ball carry by batter—Is it a skill?
Apr 11 2018
Introduction
We have in recent years used statcast batted ball data to calculate Deserved Homeruns, an estimate of the probability that a batted ball becomes a home run, using Statcast data for Launch Angle (LA) and Exit Velocity (EV). We found that when park-adjusted, one year of dHR/FB data was just as predictive as two years of HR/FB data.
The model makes some generalizations in order to make use of the data that is available. Since Statcast doesn’t make public the data on the spray angle of the ball (which direction the ball is hit) nor the batted ball spin, we lump all batted balls together without taking these other variables into account, and compare them to other batted balls with the same LA and EV.
In an article in May...
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