San Francisco, CA (SportsNetwork.com) - Hunter Pence knocked in two runs, Buster Posey collected three hits with an RBI and the San Francisco Giants completed a three-game sweep of the Arizona Diamondbacks with a 6-2 victory on Thursday.

Angel Pagan had two hits with a walk and scored twice for the Giants, who have won a season-best nine games in a row at home and 12 of their last 15 games overall.

San Francisco will remain at AT&T Park for a crucial weekend set against Los Angeles. The Giants are two games behind the NL West-leading Dodgers.

"It's going to be exciting baseball. We're playing a very, very good team," said Giants manager Bruce Bochy. "There's going to be a lot of excitement, intensity out there."

Mark Trumbo and Jake Lamb both drove in a run for Arizona, which matched a season high with a sixth straight loss.

Diamondbacks starter Randall Delgado (3-4) gave up a run in three of the four innings he pitched.

Pagan doubled down the right-field line to open the bottom of the first and scored on Pence's unconventional two-out single. Pence threw his bat at an 0-2 pitch, sending a grounder up the middle that ricocheted off second base.

"That was an unfortunate first inning," Diamondbacks manager Kirk Gibson said. "Not a lot you can do about that."

Pablo Sandoval plated Pagan with a two-out single in the third, and Brandon Crawford singled home Gregor Blanco in the fourth to make it 3-0.

San Francisco starter Jake Peavy (5-4) tossed five scoreless innings before Cliff Pennington tripled and scored on Trumbo's double in the sixth. Peavy allowed six hits and struck out eight with no walks in 5 2/3 innings.

In the home sixth, the Giants put up a three-spot against Matt Stites. Juan Perez hit an RBI double, Posey had a run-producing single and Pence drew a bases-loaded walk.

Lamb homered off Santiago Casilla in the ninth.