Automated ball-strike (ABS) system, pitch timer, bigger bases tested at Triple-A
MLB's Rob Manfred says automated strike zone is coming to league
They're testing a ball/strike challenge system in the minor leagues - Bleed Cubbie Blue
Automated ball-strike system challenge system a hit in AFL
Robo-umpiring has arrived in the minor leagues. Here's how it's been working. - The Boston Globe
The automated strike zone is moving on up to Triple-A in 2022 - Bleed Cubbie Blue
The Nashville Sounds help test out robotic umpires. Is this the future?
Korean baseball league introduces automated ball-strike system for 2024 as MLB mulls future with robot umps
What is a strike in baseball? Robots, rule book and umpires view it differently
Explaining ball-strike challenge system
Can you still yell at robot umpires? Future of baseball getting mixed reviews in minors
Fixing MLB's Strike Zone - a Challenge System Proposal