Starting with today's Dodgers-Cubs game, MLB will field test the Automated Ball-Strike System (ABS) through spring training, potentially setting the stage for its debut by 2026. The trial will encompass 13 parks using Hawk-Eye technology, allowing each team to challenge two ball/strike decisions during the game. The players, rather than managers, will make the calls and will see the results in real-time on video boards, with the process expected to remain quick, averaging 17 seconds for reviews. Previous tests indicated a significant increase in walk rates due to stricter strike zone enforcement by robot umpires over human referees.
This afternoon's Dodgers-Cubs game marks the beginning of MLB's testing of the Automated Ball-Strike System, opening the door for potential implementation in 2026.
The trial will take place in 13 parks, covering about 60% of spring training games, allowing teams to challenge two ball/strike calls each.
It will be a challenge-based system involving players directly rather than managers, and fans will be able to view ball tracking animations during reviews.
Previous tests showed that the introduction of robot umpires increased walk rates significantly, impacting how the game is played.
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