Kazmir's 7 scoreless innings help Athletics wrap up Bay Bridge series with 6-1 win over Giants

San Francisco Giants manager Bruce Bochy, center, stands on the mound with catcher Buster Posey, left, and first baseman Brandon Belt, right, during a pitching change after the Oakland Athletics scored their sixth run in the sixth inning of their interleague baseball game Thursday, July 10, 2014, in San Francisco. Bochy was relieving relief pitcher Javier Lopez. (AP Photo/Eric Risberg) (The Associated Press)

All-Star Scott Kazmir struck out nine in seven scoreless innings to help the Oakland Athletics win the annual Bay Bridge series by beating the San Francisco Giants 6-1 on Thursday.

Josh Donaldson hit a two-run homer and Stephen Vogt drove in three runs for the A's, who won three of four in the two-city series that began Monday night in Oakland. The A's (58-34) have won seven of eight overall and have matched the best start in Oakland history.

Tim Hudson (7-6) was unable to make it out of the sixth inning and lost his fourth straight decision for the floundering Giants.

San Francisco has lost 15 of its past 19 home games and hasn't won consecutive games here in more than a month.