By Jeremy Kahn

It may not show in the box score, but this victory by the San Francisco Giants is mostly likely their biggest win of the 2014 season.

Buster Posey hit two doubles, and a hit big home run, as the Giants came back from a 7-1 deficit to defeat the Colorado Rockies 12-7 at Coors Field.

Posey hit his 19th home run of the season, a solo blast that began the Giants comeback in the top of be sixth inning that saw the Giants score three runs to get within 7-4 of their National League Western Division rivals.

Andrew Susac continues his hot hitting, as he hit a two-run home run to get the Giants within three runs.

It was in the seventh inning that the Giants completed their comeback and stormed ahead of the Rockies.

After Matt Duffy grounded out in a pinch hitting role, the Giants scored six runs on five extra base hits in the frame.

Posey hit a two-run double, Hunter Pence drove in a run with a single, Gregor Blanco drove in another run with a double that eventually gave the Giants the lead for good, then Susac hit an run-scoring double and then Brandon Crawford came up with a RBI triple.

Unfortunately for Duffy the inning ended on an in auspicious note, as he struck out to end the inning.

It was a tough night for Yusmeiro Petit, as he allowed six runs in four innings of work, walked one and struck out five.

Following the departure of Petit, Bruce Bochy summoned Mike Kickham, who lasted one-third of an inning, allowing one run on two hits.

Bochy then turned the ball over the veterans of the bullpen, as the quintet of George Kontos, Jeremy Affeldt, Sergio Romo, Jean Machi and Javier Lopez combined to allow just one hit and one walk over the final five and two-thirds innings of work, with Kontos picking up his fourth win of the season without a loss.

Michael Morse was out of the lineup again after he suffered a strained oblique in batting practice on Monday.