MLB standardizes how balls are prepped for play

Major League Baseball is stepping up its guidelines to ensure all teams follow the same standards when preparing baseballs for games, including use of a humidor and when they are rubbed down with mud.



June 22, 2022 - 2:14 PM

A baseball with MLB logo is seen at Citizens Bank Park before a game between the Washington Nationals and Philadelphia Phillies on June 28, 2018 in Philadelphia. Photo by (Mitchell Leff/Getty Images/TNS)

NEW YORK (AP) — Major League Baseball is standardizing procedures for rubbing baseballs and their removal from humidors in an effort to establish more consistency amid complaints about slickness that followed the crackdown on sticky substances.

MLB has been working on standards over the course of the season in response to feedback from players and sent a memorandum outlining the changes on Tuesday to general managers, assistant GMs and clubhouse managers. Titled “Updates to Baseball Storage & Handling,” a copy of the memo was obtained by The Associated Press.

Scrutiny of baseball preparation — a minimum 13 dozen are readied for each game — has increased in recent years. Use of a humidor, began by Colorado in 2002, expanded to Arizona in 2019, three additional teams in 2020, then a total of 10 last year and all 30 this season.

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