Jhonny Peralta hit a two-run homer among his two hits and Carlos Martinez earned his second win as a starter, and the St. Louis Cardinals beat the reeling San Francisco Giants 7-2 on Thursday.St. Louis Cardinals' Seth Maness, right, is tagged out at home plate by San Francisco Giants catcher Buster Posey, left, in the eighth inning of their baseball game Thursday, July 3, 2014, in San Francisco. Maness was trying to score from third base after the Cardinals' Jhonny Peralta lined into a double play to Giants left fielder Tyler Colvin.San Francisco Giants starting pitcher Madison Bumgarner throws in the first inning of their baseball game against the St. Louis Cardinals Thursday, July 3, 2014, in San Francisco.St. Louis Cardinals' Carlos Martinez hits a two-RBI single off San Francisco Giants starting pitcher Madison Bumgarner in the fourth inning of a baseball game on Thursday, July 3, 2014, in San Francisco.San Francisco Giants' Madison Bumgarner hits an RBI single off St. Louis Cardinals starting pitcher Carlos Martinez in the third inning of their baseball game Thursday, July 3, 2014, in San Francisco.