Automated Ball-Strike System (ABS)

Before the 2026 MLB regular season, Major League Baseball implemented an automated balls-and-strikes system (ABS) and a challenge process for teams. MLB also redefin...

During a Tigers–Braves game, Major League Baseball's Automated Ball-Strike system (ABS) overruled a ball/strike decision made by home-plate umpire Roberto Ortiz, sho...

Major League Baseball (MLB) is testing and deploying an Automated Ball-Strike Challenge System (ABS) that uses high-speed cameras and tracking technology (Hawk-Eye I...

On March 26, 2026 at Oracle Park in San Francisco, Major League Baseball used its Automated Ball-Strike System (ABS, often called the "robot umpire") during the seas...

During a June 2026 game in Sacramento, Oakland A's manager Mark Kotsay engaged in a heated, profanity-laced argument with the home-plate umpire over several called b...