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Koss launches first multi-homer game as Giants crush Mets

Christian Koss hit two home runs and drove in three for his first multi-homer game in the majors, helping San Francisco beat New York 9-5 at Citi Field behind six Giants homers.

Pleasanton Newsroom

September 6, 20263 min read

Symbolic baseball clearing a tall green outfield wall inside a gold circular emblem, no athletes
MLBFinal
San Francisco Giants9
New York Mets5

September 5, 2026

Christian Koss kept the plan simple and left Citi Field with a first on his resume.

"I would be happy to [hit homers] against anyone. I think the game plan is, hit the ball hard and hope good things happen. You get two of them and I'm glad to help the team win today," Koss told MLB.com after San Francisco's 9-5 win over the New York Mets on Saturday.

The young shortstop went 2-for-4 with two home runs and three RBI, his first multi-homer game in the majors.

The Associated Press reported it as Koss' first multi-homer game after he entered with four career home runs in 124 games. MLB.com framed his entering total differently, saying he had one home run in 138 at-bats and that it was his first multi-homer game since High-A Greenville on Aug. 5, 2021. The outlets agree on the milestone Saturday; they disagree on the prior count.

Two swings, six Giants homers

Koss' two-run shot in the third traveled 368 feet and scored McCray. His solo blast in the fifth covered 383 feet. ESPN's box matches him at 2-for-4 with two runs, three RBI, and a .211/.253/.310 line with eight RBI on the season after the night. Both homers counted as his second and third of 2026.

Rafael Devers also went deep twice, finishing with three RBI and his 35th homer. Basabe added a two-run shot, and McCray's 420-foot solo in the ninth was the sixth Giants home run of the game.

The Associated Press noted it was the second time this season at least two San Francisco players had multi-homer games on the same night, and the first season with two such games since 1958.

Manager Vitello told MLB.com that Koss deserved the night, pointing to how hard the shortstop has been driven into the wall over his last 10 games. For a club sitting at 59-84, a young middle infielder finding the seats twice is the kind of developmental win that travels with the power surge.

Molina keeps the Mets quiet early

Joey Molina improved to 3-0 with five innings, one hit, two runs (none earned), one walk, and six strikeouts. Trent Thornton (3-5) allowed six runs and four home runs across five innings. The Giants finished with 10 hits and one error; the Mets managed five hits.

Koss' night sat inside a broader Devers heater that MLB.com said includes six home runs and seven walks in six games, a stretch only Bonds (2004) and Mays (1958) had matched for the franchise since 1900. The shortstop's contribution turned that individual surge into a team night with six long balls.

Next stop after the first multi-homer card

New York falls to 64-78. Sunday's pitching lists Scott (4-4, 3.80 ERA) for the Mets and a TBA starter for San Francisco. Koss leaves Queens with the first multi-homer line of his big-league career, a clean quote about hitting the ball hard, and a win that made the milestone count for more than the personal ledger.

Sources

https://www.espn.com/mlb/boxscore/_/gameId/401816818

https://sportsfly.cbsistatic.com/mlb/gametracker/recap/MLB_20260905_SF@NYM/

https://www.mlb.com/news/rafael-devers-christian-koss-lead-giants-six-homers-vs-mets

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Pleasanton Newsroom

Reporting from Pleasanton and the surrounding area.

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