MLB to trial codified check-swing reviews in the minors with two-challenge limit
MLB will test a semi-codified Check-Swing Challenge in the minors, allowing two challenges per team on swing/no-swing or ball/strike calls and using a 45-degree bat-angle criterion; trials in the Florida State League and Arizona Fall League in 2025 reduced strikeouts by over 3% and increased balls in play, with the Pacific Coast League starting midseason while the International League won’t apply the check-swing to that call (though umpires will use the same criterion). The move aims to reduce umpire discretion on check-swings and could affect batting strategy and MLB play, prompting debate on downstream effects.