Aramis Ramirez had a pinch-hit, walk-off RBI single in the bottom of the ninth inning to give the Cubs a 2-1 win over the Giants on Wednesday night in the Windy City. Blake DeWitt got the Northsiders on the board with a run-scoring single in the seventh. Ryan Dempster tossed eight-plus innings of one-run, three-hit ball with six strikeouts in a no-decision. Carlos Marmol blew the save, but was credited with the win. Chicago snapped a two-game slide in the third installment of a four-game set at the Friendly Confines. Carlos Zambrano is on the bump against Matt Cain in this afternoon's series finale.