Why MLB players are getting shorter on their bio pages this season
By Thomas Gamba-Ellis
Published on March 21, 2026.
New rules in Major League Baseball have led to some players appearing shorter on their bio pages this season due to the implementation of the Automated Ball-Strike Challenge System (ABS). Players now have to have their height measured more precisely and some are shorter than they previously claimed. The largest disparity is from Rays infielder Gavin Lux, who was reported at 6 feet 2 inches last season but now stands at 5 feet 11 inches this year. The precise measurements are emphasized to ensure each player's strike zone is tailored for them. Each ballpark will have a measuring device for players called up during the season, with a member of the home team's medical staff being the official measurer.
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