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MLB Approves Challenge-Based Automated Ball-Strike System for 2026

The system aims to improve call accuracy and reduce disputes with teams winning 52.2% of ball-strike challenges during testing, marking a major rule change for MLB.

  • Robot umpires will be used in Major League Baseball starting in 2026, after the Joint Competition Committee approved the Automated Ball-Strike system on September 23, 2025.
  • Teams can challenge two calls per game, retaining challenges if successful, and must tap their helmet to signal a challenge.
  • A poll found that 63.4% of 134 players were against the Automated Ball-Strike system, reflecting player concerns despite the committee's approval.
  • The new challenge system aims to reduce ejections related to calls, given that 61.5% of ejections last year were due to balls and strikes.
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Spectrum News broke the news in United States on Tuesday, September 23, 2025.
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