ABS challenge system

A called second strike was overturned after a manager used Major League Baseball's Automated Ball-Strike challenge system, with the review showing the pitch outside the zone. The moment highlights how the ABS system is changing games this season, letting teams contest borderline calls that once stood, and drawing attention to how often umpires' strike-zone decisions are being corrected.

MLB's ABS challenge system, which allows players to contest umpire ball-strike calls via automated tracking, is being tracked with team and player rankings for the 2026 season. Coverage focuses on how often teams and individual players are successfully using challenges, and which clubs are adapting fastest to the technology as it takes on a larger role in the sport.

A strike call was reversed after a team used Major League Baseball's automated ball-strike system to challenge it. The ABS challenge, now part of MLB's trial of robot umpiring, let the field umpire's strike-one ruling be checked and overturned by the automated review. The moment is fueling wider debate about how technology is reshaping officiating in baseball.

Major League Baseball's automated ball-strike system was used in a game for the first time in a notable moment: a called strike one was challenged and overturned to ball one. The play marks a concrete example of the ABS challenge system changing an umpire's call, a development fans and commentators are weighing as baseball experiments with technology-assisted officiating.