Giants beat Rockies 2-1 to extend NL West lead

Pence knocks in game winner

Colorado’s Willin Rosario tagged out Brandon Crawford trying to score in the fifth inning, but it was Crawford’s triple, double and run scored that helped San Francisco to a 2-1 win on Monday. Enlarge photo

Marcio Jose Sanchez/Associated Press

Colorado’s Willin Rosario tagged out Brandon Crawford trying to score in the fifth inning, but it was Crawford’s triple, double and run scored that helped San Francisco to a 2-1 win on Monday.

SAN FRANCISC – Brandon Crawford tripled, doubled and scored on a passed ball, and Hunter Pence singled home the go-ahead run in the sixth inning to lead the San Francisco Giants past the Colorado Rockies 2-1 on Monday night.

Madison Bumgarner (15-10) allowed one run and four hits in six innings while walking a career-high five. The lefty struck out six and relied on a strong defensive effort to extend San Francisco's lead to eight games over the idle Dodgers in the NL West.

Pence's RBI single off reliever Guillermo Moscoso (3-2) handed Colorado its 10th loss in 12 games.

Rockies starter Jhoulys Chacin gave up five hits and a run in five innings. He also doubled and scored on Josh Rutledge's triple in the fifth.

Four relievers held Colorado scoreless before Sergio Romo struck out pinch-hitter Jason Giambi for his 12th save in 13 chances.