Orioles' Pete Alonso hits 300th home run in wild 7-5 win over Mets at Citi Field

Matt Weyrich, The Baltimore Sun on Sep 15, 2026

Published in Baseball

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NEW YORK — Pete Alonso had one more iconic Citi Field moment left in him.

The longtime New York Mets first baseman got all the emotions out of the way Monday in a ceremonious return to Queens, complete with a tribute video, standing ovations and chants all night long. On Tuesday, he gave Mets fans a reminder of what they were missing after New York let him walk in free agency.

And they cheered him for it. Sitting on 299 career home runs, the now-Orioles star launched No. 300 for a game-tying blast in the ninth inning of their 7-5 win in 11 innings. He caught a 2-0 forkball from former teammate Kodai Senga that hung up just enough for him to launch it 414 to left-center field. Alonso chucked his bat in celebration, and the announced crowd of 28,097 remained on its feet until he took a curtain call in the middle of the next at-bat.

Already the Mets’ all-time leader in home runs, Alonso’s blast was his 124th at Citi Field — and his first as a visitor. He became the 19th active player to join the 300 club and moved one in front of Mets shortstop Francisco Lindor, who also had 299 heading into the series.

It was just the start of the theatrics for Baltimore (74-78), which scored again in the 10th and the 11th to pull off the come-from-behind victory. Coby Mayo hit a game-winning, three-run, inside-the-park home run in the 11th with a flyball to deep center field that A.J. Ewing couldn’t track down. He made a leaping attempt and crashed into the wall while the ball skipped away, and Mayo — all 6-foot-5, 225 pounds of him — motored all the way around the bases.

Mayo became the first Orioles player with an inside-the-park homer since Jorge Mateo did it Aug. 20, 2023 against the Athletics. Mateo’s average sprint speed is 30.2 feet per second, among the 99th percentile in baseball according to Statcast. Mayo averaged 28.1 feet per second on his mad dash Tuesday night.

A pair of solo home runs by Christian Encarnacion-Strand and Jeremiah Jackson were all the offense could muster off Mets left-hander Sean Manaea, who outdueled Shane Baz before the latter left the game with injury. A 105.1-mph line drive by third baseman Bo Bichette hit Baz in his right elbow in the fifth inning, and he didn’t face another batter, exiting after a lengthy chat with trainer Ben Fraser and a failed warm-up pitch.

Baz labored through the first couple of innings, throwing 46 pitches over his first two frames and allowing one run in each of his first three. The Mets peppered him for seven hits, including an RBI single by Juan Soto in the second and right fielder Carson Benge’s solo shot in the third. First baseman Jared Young put the first run on the board with a sacrifice fly.

Encarnacion-Strand’s home run was his ninth since making his season debut on July 18, the third most on the team over that span behind Alonso and Mayo. Jackson collected his eighth of the season, but his first since June 14 after spending the back half of the summer in a reserve role and bouncing between the majors and Triple-A.

New York’s bullpen took over in the sixth and didn’t allow a baserunner until Alonso took Senga deep in the ninth. The Orioles’ relievers responded in turn with five different pitchers combining for the final 15 outs to send the game to extra innings.

Baltimore jumped in front to start the 10th when a wild pitch by Mets reliever Daniel Duarte allowed Encarnacion-Strand to score from third, but Alex Hoppe took the ball in the bottom half of the frame and allowed an RBI single by second baseman Marcus Semien to tie the game. After Mayo helped the Orioles retake the lead in the 11th, Andrew Kittredge allowed an RBI single to Bichette before hanging on for the save.