What is the proposed ball-strike challenge system in MLB? - AS USA

Is baseball ready for robot umpires? We fielded an informal survey at the MLB All-Star Game in Seattle – GeekWire

The Automated Strike Zone Is Slightly Different At Triple-A in 2023 — College Baseball, MLB Draft, Prospects - Baseball America

MLB testing new technology during games to help settle balls vs. strikes conflicts - ABC News

MLB will consider implementing electronic strike zone in 2025

Updates on MLB's Automated Ball-Strike System, Bat Tracking Technology

Jacksonville Jumbo Shrimp use Automatic Ball-Strike System

What is a strike in baseball? Robots, rule book and umpires view it differently

Robo-ump challenge system, shift ban among experimental rules MLB to use in minors

Automated Ball-Strike Challenge System in Action!

MLB's Rob Manfred says automated strike zone is coming to league

Column: Improving ball-strike calls is a challenge MLB needs to take on, Professional: All Sports

MLB catchers wary of looming robo umps amid rules changes - Clearwater Times

ABS Challenge System at Sahlen Field Bisons

Robot Umpires Strike Zone: It's Not as Simple as You ThinkBaseball Prospectus

My eye over yours': Ball-and-strike challenges, possibly coming to an MLB game near you - The Athletic