Koss hits grand slam for first homer in the majors as Giants beat Diamondbacks 10-6

SAN FRANCISCO (AP) — Christian Koss hit a grand slam for his first home run in the majors, and the San Francisco Giants beat the Arizona Diamondbacks 10-6 on Tuesday night to snap a four-game losing streak.

Jung Hoo Lee added a three-run drive and Willy Adames had a two-run homer to pace the Giants in their opener of a season-high, nine-game homestand.

Robbie Ray (6-0) had a season-high nine strikeouts in six innings, allowing seven hits and three runs to remain unbeaten. The 33-year-old left-hander, who pitched for the Diamondbacks from 2015-20, faced his former team for the first time.

Kyle Harrison, Camilo Doval and Spencer Bivens each retired three batters to complete the win.

Corbin Carroll hit his third home run in two days for the Diamondbacks, tying him for the major league lead with 14. Josh Naylor also homered and had four RBIs.

San Francisco Giants’ Jung Hoo Lee watches his three-run home run during the eighth inning of a baseball game against the Arizona Diamondbacks in San Francisco, Tuesday, May 13, 2025. (AP Photo/Jeff Chiu)

Arizona loaded the bases with one out in the ninth before Doval got Ketel Marte to hit into a 1-2-3 double play.

Trailing 3-0, the Giants loaded the bases in the second inning on two walks and a single. Koss, a rookie infielder who made his major league debut in April, then homered off Diamondbacks starter Brandon Pfaadt (6-3).

Adames homered off Juan Morillo in the fifth. Lee hit his fifth home run of the season in the ninth off Joe Mantiply.

Pfaadt, whose six wins were tied for most in the majors going into the game, allowed four runs and six hits in four innings.

Key moment

San Francisco Giants center fielder Jung Hoo Lee (51) celebrates after hitting a three-run home run that also scored Heliot Ramos, left, and Mike Yastrzemski (5) during the eighth inning of a baseball game against the Arizona Diamondbacks in San Francisco, Tuesday, May 13, 2025. (AP Photo/Jeff Chiu)

Koss’s grand slam immediately swung momentum into the Giants’ favor.

Key stat

Koss is the 17th player in Giants history to hit a grand slam for his first career home run.

Up next

Diamondbacks LHP Eduardo Rodriguez (1-3, 6.86 ERA) opposes Giants RHP Jordan Hicks (1-4, 5.82) on Wednesday.

San Francisco Giants’ Jung Hoo Lee (51) celebrates after hitting a three-run home run against the Arizona Diamondbacks during the eighth inning of a baseball game in San Francisco, Tuesday, May 13, 2025. (AP Photo/Jeff Chiu)

___

AP MLB: https://apnews.com/hub/MLB

News from © The Associated Press, . All rights reserved.
This material may not be published, broadcast, rewritten or redistributed.

Join the Conversation!

Want to share your thoughts, add context, or connect with others in your community? Create a free account to comment on stories, ask questions, and join meaningful discussions on our new site.

Leave a Reply

The Associated Press

The Associated Press is an independent global news organization dedicated to factual reporting. Founded in 1846, AP today remains the most trusted source of fast, accurate, unbiased news in all formats and the essential provider of the technology and services vital to the news business. More than half the world’s population sees AP journalism every day.