The visiting San Diego Padres continued to make themselves at home in San Francisco after posting a 5-3 victory over the Giants on Monday for their 10th triumph in 12 games at AT&T Park.

Clayton Richard (5-9) picked up where he left off against the Giants last year, when he went 4-1 with a 2.39 ERA in six starts. He allowed two hits in five scoreless innings.

Heath Bell secured his 25th save of the season despite allowing a ninth-inning run.

The Padres jumped on Giants ace Tim Lincecum (6-7) for two first-inning runs. Chase Headley had a sacrifice fly and Orlando Hudson added an RBI single.

Will Venable launched a solo homer in the ninth for San Diego.

The Giants have averaged just 2.33 runs in their last dozen home games against the Padres.

San Francisco’s Pablo Sandoval smashed a two-run homer and doubled to extend his hitting streak to 15 games.

Giants left fielder Cody Ross left in the sixth inning with a strained hamstring.