MLB Proposes Automated Ball-Strike System for 2026 Season

NEW YORK — Major League Baseball Commissioner Rob Manfred announced on Wednesday his intention to propose an automated ball-strike system (ABS) to the league’s competition committee, aiming for implementation by the 2026 season. Manfred’s proposal aims to address ongoing concerns about the accuracy of ball and strike calls in the league.

During a press conference at MLB headquarters, Manfred explained that while human umpires would still make the majority of ball-strike calls, teams would have two opportunities to challenge an umpire’s ruling in each game. If a challenge leads to a call being overturned, the team would retain that challenge.

“I think that teams are really positive about ABS,” Manfred said. “Using ABS in spring training has made people more prone to complain about balls and strikes, referencing the need for ABS.”

The proposed system would rely on technology that the league has successfully tested in the minor leagues and during this year’s major league spring training. The ABS is designed to provide a more individualized strike zone based on each player’s height, but it does not mimic the nuances of a human umpire’s calls during different pitch counts.

Kevin Slowey, managing director of player services for the MLB Players Association, stated that players will review the proposed rule changes and provide feedback based on their experiences. While players on the competition committee have historically opposed some of Manfred’s changes, it appears the league has enough votes to push the initiative forward.

Despite the positive reception of the ABS in minor leagues, Manfred acknowledged concerns about how players will adapt to the system. His biggest worry remains how to implement the ABS in a manner acceptable to players and that all concerns are addressed before proceeding.

MLB’s competition committee consists of six owners, four players, and one umpire. Any measures proposed will require a majority vote to pass.

Manfred expressed confidence in the passage of the ABS, stating, “We bargained for the right to make these kinds of rule changes.” He mentioned that MLB could implement changes with just 45 days’ notice under the current collective bargaining agreement.

While the ABS is a step toward modernizing the game, the league is still evaluating other potential changes, including a check-swing review system, which may be tested in the future. However, Manfred indicated that this system might take a back seat until ABS is established.