Hunter Pence hit a home run and sacrifice fly, Buster Posey also homered to back Madison Bumgarner's first win since opening day, and the San Francisco Giants held on to beat the San Diego Padres 5-4 on Monday night. Angel Pagan drove in two runs from his new No. 9 hole as the Giants won for the third time in four games following a five-game losing streak. Pence connected for his fourth home run leading off the fourth to put San Francisco ahead 2-1 and Pagan hit an RBI double four batters later.