Kennedy and three relievers combined on a six-hitter to win 8-2 Sunday against the reeling San Francisco Giants, who fell 4 ½ games behind the Los Angeles Dodgers in the NL West race. Kennedy retired the first 11 Giants batters before Buster Posey beat out an infield single. The Giants' chances of winning the division were dealt a serious blow by the three-game sweep at the hands of the lowly Padres. Yangervis Solarte and Will Venable singled opening the sixth and a throwing error by third baseman Pablo Sandoval on Jedd Gyorko's grounder loaded the bases and chased Vogelsong. Alexi Amarista was intentionally walked and Maybin hit a two-run single. Giants rookie Chris Dominguez hit a two-run homer to left off Kennedy with two outs in the seventh for his first career big league hit. RHP Jake Peavy (6-4, 2.16 ERA) will make his 11th start with Giants when they open a three-game series against Dan Haren (13-11, 4.14) and the Dodgers in Los Angeles. Padres: LHP Eric Stults (7-17, 4.59) is scheduled to start against LHP Tyler Matzek (6-10, 4.19) in opener of three-game series against Colorado.