MLB to expand electronic strike zone to all Triple-A ballparks
MLB 2020 Should Have Been the Season of the Robot Umpire
MLB's automated strike zone debuts in Triple A Pacific Coast League - The Athletic
Artificial Turf Strikes Back in Baseball - WSJ
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Ball-Strike Challenges Among Experimental Rule Changes In Minors In 2022 — College Baseball, MLB Draft, Prospects - Baseball America
St. Paul Saints slugger Matt Wallner welcomes his robo-ump overlords – Twin Cities
The Automated Strike Zone Is Slightly Different At Triple-A in 2023 — College Baseball, MLB Draft, Prospects - Baseball America
MLB Fans Threaten to Boycott Over 'Robot Umpires'—'Will Ruin the Game
MLB 2.0: Re-imagining baseball -- Time for robot umpires behind home plate - ESPN
Developing MLB's Automated Ball/Strike System (ABS), by Matthew Whitrock
