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ABS challenge system
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- 1MLB roll out automated ball-strike challenge tracker for 2026●2026 MLB ABS challenge system tracker: Team, player rankings
MLB's automated ball-strike challenge system is set to feature in 2026, and ESPN has launched a tracker ranking how teams and players fare with challenges of umpire calls. The system lets players contest ball and strike decisions reviewed by tracking technology, and the tracker will follow which clubs and hitters use challenges most effectively as the season unfolds.