Clint Barmes' first career grand slam keyed a nine-run fourth inning and Neil Walker went 5 for 5 as the Pittsburgh Pirates rallied past the San Diego Padres 11-5 on Sunday.
Walker homered and doubled as the Pirates overcame an early 5-0 deficit and ended San Diego's six-game winning streak. The Padres had won 11 in a row at Pittsburgh dating to 2009.
Andrew McCutchen and Michael McKenry each drove in two runs during the big inning against Ross Ohlendrorf (4-3) and Cory Burns. Barmes, a 10-year veteran, has 88 career home runs.
Walker had the third five-hit game of his career and second this season, the other coming July 8 against San Francisco.
Pittsburgh stopped a three-game skid.