Diamondbacks 2, Giants 0
SAN FRANCISCO -- Right-hander Rubby De La Rosa and four relievers combined on a two-hit shutout Friday night, lifting the Arizona Diamondbacks to a 2-0 victory over the San Francisco Giants.
The win was the Diamondbacks' fifth in a row at AT&T Park and their 10th of the season against the Giants, the first time they reached double figures in wins over San Francisco since 2008.
Meanwhile, the loss was crippling to San Francisco's playoff hopes. The Giants (77-70) fell 8 1/2 games behind the Los Angeles Dodgers (85-61) in the National League West with just 15 games to go.
The Dodgers beat the Pittsburgh Pirates 6-2 on Friday night.
Coming off his shortest outing of the season, during which he was bombed for six runs on nine hits in two innings by the Dodgers, De La Rosa held the Giants to one hit before leaving a 2-0 game with the bases loaded and two outs in the sixth inning.
Left-hander Andrew Chafin came on to get Giants first baseman Brandon Belt to ground out to end the inning, preserving the shutout.
Right-handers Randall Delgado, Daniel Hudson and closer Brad Ziegler finished up with one inning apiece, retiring nine of the 10 batters they faced.
The only baserunner against a Diamondbacks reliever came on Giants catcher Buster Posey's one-out single off Ziegler in the ninth.
But Ziegler struck out reserve first baseman Nick Noonan and right fielder Marlon Byrd to close it out and register his 27th save.
De La Rosa (13-8) walked four and struck out five.
The Diamondbacks scored both their runs off Giants ace left-hander Madison Bumgarner in the sixth inning, aided by a San Francisco error.
Center fielder A.J. Pollock led off the inning with a single, his second hit of the game, and raced home when first baseman Paul Goldschmidt lined a double down the left-field line that got under the glove of Giants left fielder Alejandro De Aza for an error.
Goldschmidt wound up at third, from where he dashed home on catcher Welington Castillo's grounder to shortstop.
Pollock and Goldschmidt had two hits apiece for the Diamondbacks, who failed to hit a home run for just the second time in their last 11 games.
The closest the Giants came to scoring came in the eighth, when Pollock reached over the fence in center field to rob pinch-hitter Jarrett Parker of a home run leading off the inning.
Bumgarner (18-8) was denied a 19th win despite allowing just two runs on five hits in eight innings. He walked three and struck out seven.
The Giants had won eight of their previous 11 games, outscoring their opponents 67-36 during that stretch.
NOTES: The Diamondbacks entered the game with a 1.66 ERA in seven games in San Francisco this season. No team has ever recorded better than a 2.20 season ERA (minimum six games) at AT&T Park since it opened in 2000. ... Giants RHP Tim Hudson threw a 20-pitch bullpen session before Friday's game and declared himself fine to pitch the series finale Sunday. Hudson had to leave his last start in the fifth inning with pain in his right hip. ... Giants manager Bruce Bochy disclosed before the game that if his club is still in the division race entering the final week of the regular season, it's possible RF Hunter Pence (strained left oblique) and LF Nori Aoki (concussion) could return for a four-game series against the first-place Los Angeles Dodgers.