Renteria singled to right with one out in the eighth inning. Schierholtz followed with a line drive to left field that Wladimir Balentien tried to grab with a diving catch. He missed, and the ball rolled to the wall for Schierholtz's second double of the game, allowing Renteria to score easily.

Schierholtz's hit snapped Cincinnati right-hander Bronson Arroyo's streak of consecutive scoreless innings at 17. Arroyo (11-12), who pitched a two-hitter in Cincinnati's 7-0 win over Washington last Thursday, allowed nine hits in eight innings.

Barry Zito and three relievers combined on a two-hitter. Zito gave up two hits over the first six innings. Relief pitcher Sergio Romo (4-2) struck out the side in the seventh inning and pitched a perfect 1 2-3 innings for the win. Jeremy Affeldt struck out Laynce Nix to end the eighth inning, and Brian Wilson pitched the ninth for his 30th save.

The win allowed San Francisco to keep pace with Colorado in the National League wild-card race.

The Giants' win was just their fifth in 19 one-run games on the road.

Zito had a no-hitter and had allowed just one baserunner — a Jonny Gomes walk with one out in the second inning — before Adam Rosales blooped a single behind first base into short right field with two outs in the fifth.

Drew Stubbs had a double for the Reds only other hit.

The Giants had at least one hit in each of the first four innings against Arroyo, but they got just one runner past second base and hit into two double plays.

San Francisco got runners to second and third with two outs in the seventh inning. Giants manager Bruce Bochy sent Fred Lewis up to pinch-hit for Zito, and Lewis popped out to second baseman Brandon Phillips, leaving Zito with a no-decision in which he allowed just two hits and had four strikeouts.

Notes: Reds 1B Joey Votto left the game after the top of the first inning with blurred vision. ... The start of the game was delayed 40 minutes by rain. ... The Reds placed CF Willy Taveras on the 15-day disabled list with a strained right quadriceps and called up OF Drew Stubbs, who started as Cincinnati's leadoff hitter and in center field. Stubbs flied out to left field in his major league debut before doubling inthe sixth for his first major league hit.