MLB installed the Automated Ball-Strike System at the spring training ballparks of 19 teams, including the Pittsburgh Pirates' park in Florida.

A computerized system that calls balls and strikes is being tested during Major League Baseball spring training exhibition games starting Thursday after four years of experiments in the minor leagues.

Data from the spring training test could cause MLB to make alterations to the system for Triple-A games this season. How does the Automated Ball-Strike System work?

Data from the spring training test could cause MLB to make alterations to the system for Triple-A games this season. How does the Automated Ball-Strike System work?

Starting in 2024, MLB focused testing on a challenge system in which the human umpire makes each original call. Data from the spring training test could cause MLB to make alterations to the system ...