Major League Baseball has announced plans to implement an automated ball and strike system beginning in the 2026 season, marking a significant shift in the sport’s traditional officiating structure. The new system will allow teams to challenge calls made by human umpires, with pitchers, hitters, and catchers authorized to trigger the process by tapping their heads. Successful challenges will be displayed on in-stadium videoboards, while teams retain their remaining challenges for subsequent innings.
The decision follows extensive testing in minor leagues, spring training, and this year’s All-Star Game. MLB’s competition committee approved the system despite some dissenting votes, with league owners supporting the initiative. Commissioner Rob Manfred praised the move, stating it balances the role of human umpires with technological advancements to correct errors in high-stakes moments while maintaining game flow.
The automated system will utilize 12 cameras per ballpark, tracking pitches with precision within a two-dimensional strike zone spanning 17 inches in width. The zone’s vertical boundaries are set at 53.5% and 27% of a player’s height.
The announcement coincides with other reforms, including the debut of Jen Pawol, the first woman to officiate a regular-season MLB game. Pawol made history as the first base umpire in a Braves-Marlins matchup, drawing support from fans who celebrated her milestone with handwritten signs.