Rookie Kyle Schwarber continued his surge with two hits and two RBIs to back Jon Lester, and the Chicago Cubs beat the San Francisco Giants 7-3 for their eighth win in nine games Friday. Schwarber, who homered the previous two games, also scored two runs to help put the Cubs 1 1/2 games ahead of San Francisco for the second wild card. The Cubs scored five in that inning to break open a 1-1 game.