On the day the Giants honored Hall of Fame pitcher Juan Marichal, left-hander Madison Bumgarner gave San Francisco a performance worthy of the high-kicking Dominican. Bumgarner homered and doubled, and struck out 14 while pitching a three-hitter as the Giants beat Washington 5-0 Sunday, handing the Nationals their sixth straight loss. Bumgarner joined Marichal as the only San Francisco pitchers to throw a shutout, strike out at least 10 and hit a home run in the same game.