What is the actual strike zone? Rule book, umpires, robots view it
Which strike zone is more accurate? TV broadcaster? MLB.com? Baseball Savant? : r/baseball
PDF) Approximating strike zone size and shape for baseball umpires under different conditions
Rise of the Robo-Umps
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Robot Umpires Strike Zone: It's Not as Simple as You ThinkBaseball Prospectus
Robot Umpires in Baseball: A Terrible Idea
Baseball's 2D TV Computer Strike Zone's 3D Problem
More Steals, No Shifts and Robot Umps: 'Our Fans Want the Action' - The New York Times
Future Twins Weigh in on an Electronic Strike Zone - Twins - Twins Daily
Prospectus Feature: The Universal Strike Zone - Baseball ProspectusBaseball Prospectus
What is the strike zone in MLB? Why does it change from umpire to umpire? - Quora
Close Call Sports & Umpire Ejection Fantasy League: All Triple-A Games to Use Electronic Strike Zone Tech
What's a strike? Zone must be defined before technology takes over
MLB Umpires Missed 34,294 Pitch Calls in 2018. Time for Robo-umps?, BU Today
