Chris Davis, right, is welcomed home by Orioles teammate Adam Jones after hitting his major league-leading 42nd home run. (Thearon W. Henderson/Getty Images)

— The Baltimore Orioles had plenty of opportunities to make left-hander Wei-Yin Chen’s rocky sixth inning not matter Saturday afternoon against the San Francisco Giants.

While Chen held up his end for five innings — holding the defending World Series champion Giants scoreless and limiting them to one hit — the one-run lead his teammates gave him wasn’t enough.

And with regular season games beginning to dwindle and the Orioles paying attention to the standings more closely, they realize they can’t waste quality pitching performances.

And that’s what made the Orioles’ 3-2 lossat AT&T Park so frustrating.

Despite Chris Davis’s major league-leading 42nd homer of the season — a solo shot in the eighth that is believed to be the longest of his career — the Orioles (64-52) stranded 10 base runners and were 0 for 8 with runners in scoring position.

“When you’re not coming up with those big hits early in the game, guys on with less than two outs, it makes you work even harder down the stretch of the game,” said catcher Taylor Teagarden, who was 0 for 3 with two strikeouts and five men left on base. “This team is obviously capable of scoring more than two runs a game. It makes things a little harder on your pitching staff because they’ve got to keep it close so you have a shot. You’ve got to bear down and get those runs in earlier.”

Chen (6-5) recorded his sixth quality start in as many outings since returning from the disabled list July 10, including losses in each of his past two starts. In Chen’s past 38 starts, the Orioles have scored three or fewer runs 25 times.

The Orioles dropped the middle game of their three-game series in front of an announced 41,315, snapping their three-game winning streak and suffering the first loss on their three-city, eight-game interleague road trip through the National League West.

After beating the Giants in 10 innings Friday, fueled by a two-out, two-run double by Davis in extra innings, the Orioles couldn’t manufacture much offense.

“I think that’s the way the series has been so far,” Davis said of the tight games here. “Every little run helps. I know their record doesn’t say it, but they’re a good team. Anytime you come in here you’re going to have a battle on your hands. That’s the reason they’ve won the World Series the last few years. They know how to win. Keep your head up and go get them tomorrow.”

Chen appeared well on his way to his fourth win in five decisions since coming off the disabled list. Chen allowed just one hit through his first five innings of work before San Francisco rallied with a decisive three-run sixth inning.

“I felt like today was not my day,” Chen said through interpreter Tim Lin. “They were really aggressive the first five innings, and they watched me pitch for five innings already and were really patient in the sixth inning. They just kept waiting and waiting for my fastball and trying to hit my fastball.”

He had retired 13 straight San Francisco hitters until allowing a leadoff bloop single to Andres Torres to open the sixth inning. After Gregor Blanco’s sacrifice bunt moved Torres to second, leadoff hitter Marco Scutaro’s RBI single tied the game at 1.

After Brandon Belt’s ground-rule double one-hopped into the right-center field stands to put runners at second and third, the Orioles intentionally walked Buster Posey to face Hunter Pence.

But Pence made the Orioles pay, slapping an opposite-field double down the right field line to give the Giants a 3-1 lead.

Chen, who had gone seven or more innings in each of his previous three starts, went just six Saturday, removed by a pinch hitter in the seventh. He allowed three runs on five hits with two strikeouts and one walk.

— Baltimore Sun