Brandon Belt hit the third pitch of the bottom of the first inning for a two-run home run, and Madison Bumgarner threw a dominant seven innings Friday night, highlighting the San Francisco Giants' 8-3 victory over the visiting San Diego Padres. Belt finished with three RBIs, Buster Posey had three hits, and Mike Yastrzemski homered and scored three times for the Giants, who drew even in the four-game series of National League West clubs after having lost 5-3 on Thursday night. Belt's homer came two pitches after an error on Padres first baseman Eric Hosmer allowed Yastrzemski to reach base on Padres starter Dinelson Lamet's first delivery.