They're testing a ball/strike challenge system in the minor leagues - Bleed Cubbie Blue
Ball-Strike Challenges Among Experimental Rule Changes In Minors In 2022 — College Baseball, MLB Draft, Prospects - Baseball America
ABS Challenge System at Sahlen Field Bisons | MiLB.com
Bipartisan state coalition backs challenge to MLB's antitrust immunity | Reuters
ABS system gets rigorous test at Futures Game
Ball-Strike Challenges Among Experimental Rule Changes In Minors In 2022 — College Baseball, MLB Draft, Prospects - Baseball America
Minor league baseball testing field for MLB's pace-of-play initiatives
Robot Umpires?! No Automated Ball-Strike Challenge System for MLB in 2024 - sportstalkphilly - News, rumors, game coverage of the Philadelphia Eagles, Philadelphia Phillies, Philadelphia Flyers, and Philadelphia 76ers
Robo-umpiring has arrived in the minor leagues. Here's how it's been working. - The Boston Globe
Automated Ball-Strike Challenge System in Action! - YouTube
ABS system gets rigorous test at Futures Game
Futures Game a perfect showcase for ball-strike challenge system
Triple-A ABS Challenge System - Team Runs Out of Challenges, Pitcher Ejected for Arguing Strike Zone - YouTube
ABS Challenge System at Sahlen Field Bisons | MiLB.com
Robot umpire: Baseball edges closer to implementing automatic strike zone in major leagues
Watch how minor league strike zone challenge system works
Explaining ball-strike challenge system
The Automated Strike Zone Is Slightly Different At Triple-A in 2023 — College Baseball, MLB Draft, Prospects - Baseball America
Explaining ball-strike challenge system
Triple-A ABS Challenge System - Team Runs Out of Challenges, Pitcher Ejected for Arguing Strike Zone - YouTube
Close Call Sports & Umpire Ejection Fantasy League: Checking in with Triple-A's Ball/Strike Challenge System
Robo umps reach Triple-A, but MLB rollout still uncertain | AP News
Explaining ball-strike challenge system
MLB to expand electronic strike zone to all Triple-A ballparks - UPI.com