SEATTLE, Wash. — The Seattle Mariners will retire Randy Johnson’s number 51 during a pre-game ceremony next year.

Johnson’s will become the fifth player to have his number retired in Mariners history, joining fellow Hall of Famers Ken Griffey Jr. (#24), Edgar Martinez (#11) and Ichiro Suzuki (#51). Like all other MLB teams, the Mariners have also retired Hall of Famer Jackie Robinson’s #42. While the franchise already retired #51 for Ichiro Suzuki this year, the team will honor the ‘Big Unit’ on his own.

It’ll happen during a pre-game ceremony at T-Mobile Park on May 2, 2026, the Mariners announced. The team will also host “Randy Johnson ’80s Jersey Night” that day.

Johnson retired following the 2009 season with a career win-loss record of 303-166, ERA of 3.29 and 4,875 strikeouts, second only to Nolan Ryan’s 5,714. Randy is among just four pitchers in MLB history with at least 300 wins and 4,000 strikeouts. He won five Cy Young Awards and was the 2001 World Series co-MVP with Curt Schilling.

During his career, Johnson defeated every Major League team at least once. He remains among the all-time franchise leaders in strikeouts (2nd) and wins, starts and innings pitched (3rd), among other categories. Johnson had a 22-year career in MLB and was inducted into the National Baseball Hall of Fame in 2015. The Arizona Diamondbacks retired his #51 in 2015.

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