SAN FRANCISCO -- Mark Trumbo sent a towering blast into the left-field bleachers for his 33rd home run and the Orioles collectively jumped on Matt Cain early, generating five runs on 11 hits in the first five innings as part of a convincing 5-2 series-opening win Friday over the Giants at AT&T Park to regain the lead in the American League East.
The Orioles, who entered the series with a Major League-best 172 home runs, flexed their muscles and added to that total with two Friday. Trumbo hit a two-run blast in the third and Chris Davis hit a solo home run in the fifth off Cain, who has now allowed multiple home runs in three of his five outings since returning from the disabled list. Cain hadn't allowed a run in his last two appearances entering this start. But he lacked command Friday and exited after pitching just four-plus innings.
"He didn't have good fastball command tonight," said Giants manager Bruce Bochy. "A lot of them came up over the plate. It's a club with a lot of power, and they took advantage of him."
Meanwhile, Baltimore rookie Dylan Bundy became the latest pitcher to stymie a reeling Giants offense, yielding one run on three hits in 5 2/3 innings. "I like the fact that he pitched well when he didn't have a good feel for his curveball and really his changeup," said Orioles manager Buck Showalter.
Closer Zach Britton was called on in the ninth to end a modest Giants rally and recorded his 36th straight save to start the season, and his 38th straight save dating back to last season, as the Orioles took a half-game lead over the Toronto Blue Jays in the American League East with their victory and a Jays loss Friday. They handed the Giants their eighth series-opening defeat since the All Star break. However, the club remained one game ahead of the Dodgers in the National League West.

MOMENTS THAT MATTERED
Bundy's ascension: Bundy keeps showing he's in the starting rotation to stay, enjoying another strong performance Friday. His only real trouble came in the third inning, when the Giants plated their first run and had runners at first and second with one out. But Bundy calmly induced Brandon Belt to ground into an inning-ending 4-6-3 double play that ended the rally. After that, Bundy cruised the rest of the night, retiring eight of his last nine batters.
"I think we were just planning on going away and keeping the ball down and away," said Bundy. "That was fortunate; he got himself out on that one. That was a big play for us." More »

Escaping damage: The Orioles didn't have any trouble generating offense against Cain. But the club wasted an opportunity to break the game open in the fourth, after Cain gave up a one-out infield single to Manny Machado to load the bases. Hyun Soo Kim, who doubled in the previous at-bat, was caught lingering off second base. Following a rundown, Joe Panik tagged Kim for the second out. Cain then worked his way out of the inning unharmed one at-bat later, getting Trumbo to strike out swinging. More »

Trumbo's blast: Trumbo had been mired in a slump since the All-Star break, batting .158 with a .487 OPS before Thursday. But after breaking out with a grand slam in Thursday's win in Oakland, he continued showing signs of life Friday, turning on a 90 mph Cain fastball in the third inning and nearly depositing it over AT&T Park's left-field bleachers for his Major League-leading 33rd home run of the season to give the Orioles a 4-0 lead. Statcast™ projected the shot at 441 feet with an exit velocity of 113 mph. More »

Too little, too late: The Giants formed a late rally in the bottom of the ninth, getting back-to-back base hits from Ángel Pagán and Belt to cut the lead to three while also putting the tying run on deck. But Britton quickly thwarted their efforts, retiring Buster Posey, Brandon Crawford and Hunter Pence consecutively to end the inning and preserve the Baltimore win. The Giants have scored just three runs in their last three games.
"You sometimes got to find ways to score," said Bochy. "We ended up getting two tonight, but it's a better hitting club than this."

SOUND SMART WITH YOUR FRIENDS
Bundy did something Friday night that he had never done before in 69 games as a pro: came up to bat. He had to hit for himself when starting his first game in a National League ballpark. There were no surprises: Bundy struck out in each of his first two career plate appearances. More »
QUOTABLE
"It's the old Orel Hershiser line -- he said you need one to compete, two to win and three to dominate. … Tonight he had one, and he was able to compete." -- Orioles manager Buck Showalter, referring to Bundy's gutty performance despite not having his best stuff
"I'm pretty sure I missed a sign on that one. I wasn't really sure what was going on that first at-bat." -- Bundy on batting for the first time as a pro, with runners at the corners and one out
WHAT'S NEXT
Orioles: In the second game of this Interleague series in San Francisco, righty Kevin Gausman will get the nod for the O's. The 25-year-old has quality starts in four of his last five outings, but was saddled with a tough-luck loss in his last game in Oakland. This will be his first career start against the Giants.
Giants:Madison Bumgarner will make his first career start against the Orioles at 6:05 p.m. PT Saturday at AT&T Park. The left-hander has a 2.20 ERA in his last seven starts, but the Giants have won just one of those games.
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