Co-Founders

Award-winning business leaders and inspiring baseball legends.

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  Barry Larkin

  Co-Founder & Chair of the Board

  Barry Larkin is a Major League Baseball (MLB) Hall of Famer who played 19 seasons for the Cincinnati Reds, and is one of only 42 players in MLB history to win an MVP award, a World Series Championship, and be inducted into the Hall of Fame. Mr. Larkin is a 12-time All-Star, nine-time Silver Slugger winner, and the recipient of 3 Gold Glove awards. For Baseball United, Mr. Larkin oversees the governance of the company and its strategic growth.

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  Adrián Beltré

  Co-Founder & Vice Chair of the Board

  Adrián Beltré is a Major League Baseball (MLB) Hall of Famer who played 21 seasons with the Los Angeles Dodgers, Seattle Mariners, Boston Red Sox, and Texas Rangers. A four-time All-Star and five-time Gold Glove Award winner, he is one of only 12 players in MLB history to record over 3,000 hits and 450 home runs. Mr. Beltré is widely regarded as one of the greatest third basemen of all time and was inducted into the Baseball Hall of Fame in 2024. Mr. Beltré assists in overseeing Baseball United's governance and investor relations.

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  Robinson Chirinos

  Co-Founder & Vice Chair of the Board

  Robinson Chirinos is a Major League Baseball (MLB) catcher who played 11 seasons with the Tampa Bay Rays, Texas Rangers, Houston Astros, New York Mets, Chicago Cubs, and Baltimore Orioles. A reliable defender and respected leader behind the plate, he was a key contributor to the Astros’ 2019 American League championship team. Mr. Chirinos has represented Venezuela in multiple international competitions and has been a role model for young players across Latin America. Mr. Chirinos assists in overseeing Baseball United's governance and business development.

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  Mariano Rivera

  Co-Founder, Board Member

  Mariano Rivera is a Major League Baseball (MLB) Hall of Famer who played 19 seasons for the New York Yankees. A 13-time All-Star and five-time World Series champion, he is MLB's career leader in saves and games finished. Mr. Rivera won five American League Rolaids Relief Man Awards and finished in the top three in voting for the AL Cy Young Award four times. He is the only player in history to be unanimously elected into the Hall of Fame. Mr. Rivera helps drive Baseball United's investor, sponsor and international development initiatives.

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  John P. Miedreich

  Co-Founder & CEO

  John Miedreich is a business and operations executive with experience spanning international law enforcement, sports, and global business development. He spent more than two decades with the New York City Police Department, where he led complex international initiatives and built strategic partnerships across multiple regions, including the Middle East. Mr. Miedreich previously served as Baseball United’s Executive Vice President of Baseball Operations, where he oversaw baseball operations, fundraising, investor relations, and the development of Baseball United Ballpark. Mr. Miedreich oversees the organization's day-to-day operations and strategic growth.

MLB Co-Owners

The most prestigious player-led ownership group in all of professional sports.

Milestones