The Colorado Rockies used a seven-run eighth inning to rally past the Arizona Diamondbacks 8-3 in Denver last night, snapping a six-game losing streak against the NL West Division leaders. Troy Tulowitzki had the biggest blow in the rally, a three-run home run that put the Rockies in front for the first time in the game. Seth Smith had three hits, including two triples, and drove in a run in the eighth inning. Rookie Jordan Pacheco had two hits and two RBI in his major league debut, and Carlos Gonzalez and Dexter Fowler also drove in runs. Matt Belisle earned his 10th win of the season in relief, the second Rockies pitcher to reach that number this season. The Rockies and Diamondbacks play the rubber game of their series tonight at Coors Field. First pitch is scheduled for 7:40.