In one quirky scheduling stretch, the San Francisco Giants are playing each of the three National League opponents they beat on the way to winning an NL pennant and eventually another World Series last fall. After an impressive four-game sweep against the Nationals in a rematch of the division series, San Francisco hits the road for three games at St. Louis in what has emerged as a rivalry from the NLCS in 2012 and '14, then four more games at Pittsburgh after the Giants beat the Pirates in the one-game wild card. San Francisco returned from being swept in four games by the Cubs at Wrigley Field from Aug. 6-9 by splitting a two-game series with Houston then outscoring the Nationals 28-12.