(San Francisco, CA)  --  The A's erupted for nine runs in the fifth inning as they routed the Giants 15-3 in San Francisco.  Stephen Piscotty homered and finished with five RBI as Oakland swept the Bay Bridge Series in three games.  Marcus Semien and Chad Pinder also went deep for the A's, and Mike Fiers tossed six innings of two-run ball to get the win.  Brandon Belt and Brandon Crawford homered for the Giants in defeat.  Logan Webb took the loss and reliever Wandy Peralta allowed five runs without recording an out.