Guillermo Quiroz hit a walkoff homer in the bottom of the 10th as the Giants beat the Dodgers 10-9 on Saturday. Quiroz was the Giants' last man on the bench and was pinch-hitting for the pitcher in the 10th. The homer was the third of his major league career, with the previous two both coming in 2008. With a pair of one-run wins to open the series against the Dodgers, the Giants are now 18-12 this season.