Minor League Baseball to Trial Ball-Strike Challenges

Minor League Baseball will expand trials of a new rule that allows players to challenge balls and strikes using an automated ball-strike system if they think the umpire missed the call.

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Triple-A's Ball/Strike Pitch Location Challenge System Update and a Minor League Ejection in OKC

Ball-Strike Challenges Among Experimental Rule Changes In Minors In 2022 — College Baseball, MLB Draft, Prospects - Baseball America

Minor — College Baseball, MLB Draft, Prospects - Baseball America

Watch how minor league strike zone challenge system works

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MLB announces experimental rules to be tested for 2022 Minor League season

The Automated Strike Zone Is Slightly Different At Triple-A in 2023 — College Baseball, MLB Draft, Prospects - Baseball America

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Explaining ball-strike challenge system

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