MLB announces experimental rules to be tested during 2023 Atlantic League season

Major League Baseball (MLB) today announced experimental playing rules to be used during the 2023 Atlantic League (ALPB) Championship Season. In 2019, the Atlantic League became MLB’s first Partner League, a capacity in which the ALPB pioneered rules and equipment tests. Previous rules that were first tested in the Atlantic League include the Double-Hook Designated Hitter, the dropped pitch rule, the increased distance of the pitching rubber, automated balls and strikes using TrackMan technology, no mound visits other than for pitching changes or medical issues, the three-batter minimum for pitchers, bigger bases and defensive shift restrictions.

Beginning with its 2023 Opening Day on Friday, April 28th, the ALPB will feature a new Designated Pinch Runner rule, a pitcher limit of a single disengagement per at bat, and the return of the Double-Hook DH rule. Below is a summary of the experimental rules that will be tested to start the 2023 ALPB season:

Atlantic League President Rick White said: “The Atlantic League is proud of our relationship with MLB as its very first Partner League. We are excited to have pioneered the rules changes which MLB is using today to enhance the game at its highest level. Our players and coaches are helping shape the future of the game.”

MLB Executive Vice President, Baseball Operations Morgan Sword said: “We thank the Atlantic League for their continued partnership. In recent years, the ALPB’s experimental rules have aimed to emphasize athleticism, improved pace of play and other means of giving fans the game they want to see. We are excited for another great season of Atlantic League baseball and the entertainment that it will bring to fans.”

 The Atlantic League’s partnership role has called for the league to institute rule changes that are under evaluation for testing by MLB.  Some of the rules first seen by fans of the Atlantic League advanced to further testing in affiliated play in the Minor Leagues before being implemented in MLB games.

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