Major League Baseball has confirmed plans to introduce automated umpiring technology for the 2026 season, marking a significant shift in the sport’s traditional structure. The system will feature an automated ball and strike challenge mechanism, allowing pitchers to contest calls made by human umpires.

The decision follows extensive testing in minor leagues, spring training, and this year’s All-Star Game. Under the proposed rules, teams will be granted two challenges per game, triggered exclusively by hitters, pitchers, or catchers via a head-tap signal. Successful challenges will display the pitch on stadium videoboards, with the team retaining its remaining challenges.

While the league’s competition committee approved the system, the vote was not unanimous. Four of the 11 committee members opposed the measure, though MLB owners supported it, securing a six-seat majority. Commissioner Rob Manfred praised the compromise, stating it balances “the integral role of the umpire” with the ability to correct errors in critical moments.

The automated system will utilize 12 cameras per ballpark, tracking pitches with precision within one-sixth of an inch. The designated strike zone will span 17 inches in width, extending from 27% to 53.5% of a player’s height.

MLB has also made headlines recently for other reforms, including the debut of Jen Pawol, the first female umpire to officiate a regular-season game. Pawol’s historic appearance drew support from fans, though her experience highlighted the challenges of navigating major league environments.