The Pirates (94-60) moved 4 1/2 games ahead of the Cubs (89-64) with eight regular-season games to play, but Chicago clinched a postseason berth when the Oakland A's defeated the San Francisco Giants 5-4 later that night. Pirates right-hander Gerrit Cole (18-8) worked seven full innings for the win in a tight duel with Cubs left-hander Jon Lester, who also worked seven innings and fell to 10-12 with the loss.