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MLB Testing Outfield Positioning Rules in Minors as Quest for More Offense Continues
The experiment has already produced an AFL-record five triples in one game, and MLB says the changes could help revive offense.
Major League Baseball is testing a new rule in the Arizona Fall League at Salt River Fields that restricts outfield positioning, forcing defenders to play straight up rather than shifting to generate more doubles and triples.
The Arizona Fall League serves as a low-stakes testing ground for potential rule changes, similar to how it tested the Automated Ball-Strike system before MLB implemented it in 2026. Previous pitch-clock changes improved game pace, but offensive statistics have barely budged since.
Minnesota Twins prospect Kyle DeBarge relies on video boards to ensure correct positioning during games. Washington Nationals prospect Teo Banks noted the challenge: "Your first move is always back with how shallow you are," highlighting the increased running and strategic adjustments required.
The experimental rules already produced a 15-8 game on Thursday featuring a record five triples. Salt River manager Ted Tom said, "The pros are that you're never out of the game," emphasizing fan engagement despite the unconventional scoring.
Any implementation of these rules in the major leagues remains years away, and MLB officials declined to comment on this specific trial. The experiment is restricted to games at Salt River Fields due to its specialized technology infrastructure.