SAN DIEGO ¨C Jerry Hairston Jr. drove in three runs and five San Diego pitchers retired the final 19 batters, leading the NL West-leading Padres to a 6-1 win over the rival Los Angeles Dodgers on Wednesday night.

The Padres beat the Dodgers for the first time in five games at Petco Park this season and for the second time in seven games overall. The Dodgers and Padres are in the midst of playing each other seven times in 10 days. LA is in third place, six games behind San Diego.

Left-hander Clayton Richard (8-5) and four relievers combined on a four-hitter. Jamey Carroll was the last Dodgers batter to reach base, on an RBI single with two outs in the third.

Earlier, the Dodgers acquired outfielder Scott Podsednik from the Kansas City Royals for a pair of minor leaguers, trying to replenish their outfield and boost their chances in the division.

Given a 1-0 lead, Dodgers right-hander Hiroki Kuroda (8-9) retired 10 straight batters going into the sixth inning, when the Padres rallied to take the lead.

Tony Gwynn Jr., pinch-hitting for Richard, started the rally with a leadoff infield single and stole second with one out. Chris Denorfia walked and Adrian Gonzalez hit a blooper single in front of center fielder Matt Kemp, bringing in Gwynn from second with the tying run. Chase Headley walked to load the bases and Nick Hundley's sacrifice fly brought in Denorfia. Will Venable took a called third strike to end the inning.

Before that inning, LA starters had allowed just one earned run in 48 innings, including shutouts in four of their previous six games. The Dodgers won the series opener 2-0 on Tuesday night.

San Diego added two more runs in the seventh, chasing Kuroda in the process. Jerry Hairston Jr.'s two-out double scored younger brother Scott, who hit a leadoff single and advanced on Everth Cabrera's sacrifice. Denorfia then singled in Hairston Jr.

Hairston Jr. hit a two-run single with two outs in the eighth.

Richard allowed one run and four hits in six innings, struck out six and walked one.

Kuroda went six-plus, allowing three runs and four hits, striking out five and walking two.

LA got its run in the third when Carroll singled in Blake DeWitt.

NOTES: RF Andre Ethier was back in the lineup for the Dodgers a day after a stomach bug limited him to pinch-hitting duty. He hit a two-run single Tuesday night. ... At 13-8, the Padres clinched their sixth straight winning month. The New York Yankees are the only other team to do so. ... San Diego has won eight of 11 since the All-Star break.