Social media went sideways after the Phillies official roster showed adjusted heights for several key players

Social media went sideways yesterday when people noticed the Phillies had quietly updated player heights across their official roster.

Alec Bohm went from 6’5″ to 6’4″. Bryce Harper dropped from 6’2″ to 6’1″. Bryson Stott lost an inch. Edmundo Sosa lost an inch. Garrett Stubbs lost an inch. Zach McCambley lost an inch.

An entire roster of grown men collectively getting shorter overnight with no known explanation. Personally, I wanted to blame an aging roster but it turns out that apparently a little thing called “science” is responsible.

Phillies updated player heights on their official roster:

The Phillies updated player heights on their official roster:

Alec Bohm 6’5” to 6’4”
Bryce Harper 6’2” to 6’1”
Edmundo Sosa 6’0” to 5’11”
Zach McCambley 6’2” to 6’1”
Garrett Stubbs from 5’10” to 5’9”
Bryson Stott 6’1” to 6’0” pic.twitter.com/bJctv86gIC

— Phillies Tailgate (@PhilsTailgate) March 19, 2026

MLB cannot implement the Automated Ball-Strike Challenge System this season without knowing every hitter’s precise height down to the millimeter. Not an estimate. Not what the guy told somebody in the draft room back in 2019. The actual measurement taken under controlled conditions. So teams were given an appointed day and a two-hour window, specifically between 10 AM and noon local time, to get it done.

The timing window is not arbitrary. People shrink over the course of a day. Spinal compression is a real thing and by the afternoon you are measurably shorter than you were when you woke up.

For the Phillies, Bryce Harper at 10 AM is taller than Bryce Harper at 4 PM. The ABS system needs to know which one it is working with and MLB is not leaving that to chance.

The full protocol is as specific as it sounds. No shoes. No hat. Knees exposed. Heels together. Back against the wall. No slouching. Every detail is standardized because an ABS challenge can come down to less than one-tenth of one inch.

You could technically win a challenge on a pitch that missed the personal strike zone by a margin smaller than a single stitch on a baseball.

ABS Challenge System (MLB.com)

• Everything you need to know
• What does all the data mean
• Players get strike zones measured
• ABS Challenge Dashboard
• ABS Challenge Leaderboard

The Phillies are not shrinking yet. The measurements are just finally accurate. The ABS system needs to know exactly who it is protecting and now it does. Welcome to the future of baseball. It involves a tape measure, a wall, and a very specific time of day.

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