SEATTLE – Facing Seattle Mariners ace Felix Hernandez, who is on a historic run of dominating hitters, wasn’t fun for Chris Davis early.

The Orioles first baseman struck out in his first two at-bats against Hernandez and was hitless in three plate appearances against him Friday night.

“At times it felt like he was just kind of playing around out there,” Davis said. “That’s how he’s been all year. He’s at the top of his game right now. There’s, in my mind, not a better pitcher in the league at this point.”

But the Orioles knew that if they could keep the game close against Hernandez, they might be able to steal a win in the Pacific Northwest.

Davis helped the Orioles do that, blasting a solo home run off reliever Charlie Furbush in the top of the 10th in a 2-1 win in front of an announced 24,792 at Safeco Field, giving the Orioles their 10th win in 13 extra-inning games this season.

“You know you have a tough task when you go up against [Hernandez],” Davis said. “You can’t just go out there and take pitches. He throws a lot of strikes, so you just have to kind of grind him out. Obviously, their bullpen is pretty solid, too. It was big to get a hit at that time.”

Right-hander Kevin Gausman matched Hernandez, rebounding from a four-inning outing on Sunday in Oakland. He held the Mariners scoreless for the first five innings and recorded his second-longest outing of the season, allowing one run over 6 2/3 innings to give the Orioles their fifth straight quality start.

Against a Mariners team that has managed just one run over the first 19 innings of this series, the Orioles needed just two solo homers to win. Davis’ homer and Nelson Cruz’s second-inning blast were seven innings apart, but they did the job.

With the win, the Orioles (57-45) guaranteed themselves at least a .500 record on their 10-game West Coast road trip and have won four of their past five. They have won 16 of their past 23 games on the road and are 16-9 against the American League West this season.

Davis took a 1-2 slider over the middle of the plate and sent a towering blast  over the right-field fence.

“It was up in the zone, and he hit it out of the park," Furbush said. "It was the pitch I wanted to throw. I just left it up.”

And even though Davis has struggled matching 2013's historic 53-homer season, seven of Davis’ 17 homers this season have given the Orioles the lead.

“Chris doesn't let things snowball mentally,” Orioles manager Buck Showalter said. “You know it’s so frustrating -- can you imagine doing what he did last year knowing you are capable of that? And going through some of the challenges. But he’s had some really big hits for us this year. Tonight was a good example of that.”

Hernandez, the AL leader in ERA (1.99), allowed just one run over seven innings for his 13th consecutive start of seven or more innings and two or fewer runs allowed, tying a major league record set by Tom Seaver in 1971.

“He’s special,” Showalter said. “Everybody in Seattle knows that. Very few pitchers you will see have that good of a hand and can manipulate the ball and do so many things with it. And almost invent pitches out there. What people miss is he’s got such a great feel for pitching."

After Cruz’s homer, Hernandez retired 11 straight and 16 of the next 18 batters.  On the night, Hernandez recorded 10 strikeouts and no walks.

Against a Seattle lineup that had seven left-handed hitters and a switch-hitter, Gausman used his fastball-changeup mix to record his second-longest outing of the season.

“You are going to have to have a good changeup to get through that lineup,” Showalter said. “He was good. Boy, he was good.”

Over the past five games, Orioles starters have compiled a 1.26 ERA.

Gausman, who has allowed one run or none in six of his nine starts and has a 2.86 ERA on the road, nearly matched Hernandez.