Major League Baseball is continuing to test the Automated Ball-Strike challenge system, or ABS for short, during spring training games in 2025 in both Arizona and Florida.

Using the automated ball-strike system (ABS), teams will have the option to challenge ball-strike calls in the majority of spring training games.

ABS is, for those unfamiliar with the concept, what people want when they call for "robo umps." The system determines each pitch's location (i.e. a ball or a strike) using a Hawk-Eye camera.

MLB commissioner Rob Manfred recently said he'll propose use of the ABS system to the competition committee in the hopes that it can be adopted in time for use in the 2026 regular season.

MLB’s automatic ball-strike challenge system was put to the test early in Tuesday’s All-Star Game. And it handled the situation with good accuracy. During the bottom of the first inning with ...

MLB’s automatic ball-strike challenge system was put to the test early in Tuesday’s All-Star Game. And it handled the situation with good accuracy. During the bottom of the first inning with ...