With an exhausted bullpen and inconsistent starting pitching, the Rockies needed a big start from Jorge De La Rosa.
He provided one of his best games of the season, shutting down the Padres for over 7 innings.
Troy Tulowitzki continued his torrid September, hitting two 3-run homeruns and driving in a career best seven runs. He has now hit 11 homeruns in the past 13 games. Jay Payton went 3 for 4 in his first start since September 2008. Jonathan Herrera also contributed a 3 for 4 day, scoring two runs.
San Diego Padres first baseman Adrian Gonzalez did his best to keep his team in the game, matching Tulowitzki by hitting two homeruns himself, but it was not enough.
Huston Street pitched a flawless ninth inning for the save.
With the Atlanta loss, Colorado now trails both the Wild Card and NL West by 2 1/2 games. They have an off day tomorrow before heading to Los Angeles for a three game series.