After his time with the Mets is over Pete Alonso thanks the fans You improved me and had faith in me

In his message which followed by a slideshow of some of his best moments at the plate and on the field Alonso took time to show appreciation for the Mets faithful coaches and staff who helped nurture his progress in the major leagues for seven years.

"New York, thank you. These last few years have shaped me in ways I’ll carry for the rest of my life," Alonso wrote on his Instagram account. "This city demands your best and I’m proud to look back knowing I gave everything I had into earning the privilege of wearing that jersey.

I’ve been blessed with incredible teammates, coaches, trainers, staff, and countless people who helped shape me into the player and man I am today. I’m forever grateful for every person who challenged me, supported me and believed in me along the way.

Thank you for the passion. Thank you for the love. Even the tough love that comes with playing for New York. When it came time for first pitch, thank you for being electric through it all. Thank you for getting rowdy every time I stepped up to the plate and made the building shake when the ball found a seat over the wall. Your energy fueled me more than you’ll ever know.

You believed in me, and you made me better.

With love,

Polar Bear"

Alonso made his major league debut in 2019 after being selected by the Mets in the second round of the 2016 draft. He won NL Rookie of the year that year after hitting 53 home runs a new rookie record.

Alonso slashed and became the Mets' most productive power hitter for seven seasons. 253/.341/.516 with 264 home runs, 183 doubles, and 712 RBI across 1,008 games. He broke the franchise record in 2025 with those 264 home runs.