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.

MLB's automated ball-strike system explained as spring training games kick off with robo-ump challenges ABS is getting a major-league test this spring ...

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