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.

MLB using robo umps in 2025 All-Star Game: How ABS system works and when it could come to regular-season games The challenge system was used during spring training earlier this year ...

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 ...

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.

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 ...