SAN FRANCISCO — Once the Giants finally got a bunt down, the rest was easy. A wild throw by reliever Randy Choate on a bunt allowed Brandon Crawford to score the winning run in the bottom of the 10th inning, lifting the San Francisco Giants over the St. Louis Cardinals 5-4 on Tuesday for a 2-1 lead in the NL Championship Series. Crawford drew an eight-pitch walk from Choate to begin the inning, ending a stretch of 16 straight Giants retired since Tim Hudson's two-out single in the fourth.