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Activity Number: 190
Type: Roundtables
Date/Time: Monday, August 4, 2014 : 12:30 PM to 1:50 PM
Sponsor: Section on Statistics in Sports
Abstract #313463
Title: Analyzing Umpire Performance Using PITCHf/x
Author(s): Andrew Swift*+
Companies: University of Nebraska at Omaha
Keywords: Baseball ; PITCHf/x ; R ; pitchRx

PITCHf/x is a pitch-tracking system, created by Sportvision. Since 2007, every MLB stadium has had the system installed. The system collects information about every pitch, including location and outcome. The pitchRx package in R allows for the easy downloading and mining of PITCHf/x data, along with other useful data. In this talk, I will discuss using PITCHf/x data to analyze umpire performance related to calling balls and strikes. In particular, I will investigate the existence of a home-field bias and the variability of call accuracy across umpires.

Authors who are presenting talks have a * after their name.

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