Buster Posey had four hits and three RBIs to lead the Giants to an 8-5 win over the Brewers on Sunday to take the series finale. Posey hit a three-run double to fuel a four-run third that got the Giants' offense going. Ryan Braun, Travis Shaw and Hernan Perez each homered for the Brewers, who begin a four-game series against the Dodgers at Dodger Stadium on Monday.