Iannetta got into the game because shortstop Troy Tulowitzki suffered a quad strain reaching for Aaron Rowand's RBI single in the bottom of the first.

Aaron Cook (4-1) picked up the win despite giving up 10 hits in seven innings. The Giants only managed two unearned runs off him. Brian Fuentes earned his second save.

Willy Taveras scored Colorado's other run as the Rockies snapped a four-game losing streak.

Bengie Molina doubled in the Giants' other run.

Tim Lincecum (4-1) allowed the three Colorado runs on eight hits in seven innings.