Buster Posey hit a grand slam and the San Francisco Giants got two RBIs each from Brandon Crawford and Matt Duffy in a 9-5 win over the Los Angeles Dodgers on Friday night. The Giants' eighth victory in 10 meetings with the Dodgers this season put the defending World Series champions within 1 1/2 games of NL West-leading Los Angeles. Mike Bolsinger (4-2) gave up a season-high five runs in 5 1-3 innings, along with eight hits and three walks.