BALTIMORE -- George Kirby pitched seven scoreless innings of three-hit ball and the Mariners kept rolling with a 1-0 victory over the Orioles in Tuesday night’s series opener at Oriole Park at Camden Yards.

Kirby (8-5) struck out seven and walked none to help the Mariners win their 10th out of their past 11, on a night they began one game back of the Astros for first place in the AL East. (The Astros hosted the Red Sox later Tuesday night.)

It was the right-hander’s fourth consecutive quality start, which lowered his ERA to a season-best 3.71 -- the first time it has sat beneath 4.00 this season.

Josh Naylor singled in a run for the Mariners in their fourth 1-0 victory of the season -- all coming since the start of July -- and their ninth via shutout.

That was the second of only fi

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