Seattle’s George Kirby held the host Baltimore Orioles to three hits in seven innings and the Mariners won 1-0 for their eighth consecutive victory in a classic pitchers’ duel Tuesday night.

Kirby (8-5) struck out seven without a walk, facing just two batters over the minimum during his stint. He has won four straight starts and he now has at least eight wins in each of his four major league seasons.

Relievers Eduard Bazardo, Gabe Speier and Andres Munoz completed the five-hitter.

Munoz secured his 28th save despite issuing a two-out walk to Gunnar Henderson in the ninth and then a single by Adley Rutschman. Ryan Mountcastle grounded out to end the game.

Baltimore’s Dean Kremer (8-9) was the hard-luck loser after tossing eight innings of one-run ball. He allowed five hits and one walk

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