As he often does, Madison Bumgarner helped the Giants win with his big left arm and his bat. Bumgarner struck out nine over seven innings and outdueled fellow left-hander Brett Anderson, pitching San Francisco past the Oakland Athletics 3-2 on Tuesday night despite a late threat. Bumgarner (8-7), 5-0 over his last 10 starts with the Giants going 9-1, allowed two hits and didn't walk a batter for the sixth time this year.