Rockies 9, Diamondbacks 4: Corey Dickerson highlighted a four-run sixth inning with a two-run homer and Jhoulys Chacin helped himself with a two-run blast as Colorado outslugged visiting Arizona.

Charlie Blackmon added a solo blast and Charlie Culberson singled in a run during the sixth-inning uprising for the Rockies, who have won back-to-back games for the first time since Aug. 28 and 30. Troy Tulowitzki delivered Colorado’s fourth homer of the game in the seventh to support Chacin (14-9), who walked five but limited the damage to two runs and six hits in six innings.

A.J. Pollock hit a two-run homer and Paul Goldschmidt sent his National League-leading 35th blast out to right in the seventh for the Diamondbacks.

Pollock gave Arizona an early lead two batters into the game, sending a 2-2 slider into the seats in left-center for his eighth home run. Chacin got those runs back himself in the third, when his first career home run just cleared the wall in left field.

Blackmon gave the Rockies the lead for good in the sixth, when he greeted Tony Sipp (3-2) with a solo shot to right. Josh Rutledge followed with a single and Dickerson sent a towering shot out to right to extend the advantage.

GAME NOTEBOOK: Randall Delgado started for the Diamondbacks and allowed two runs on three hits and a pair of walks in five innings. … Colorado LHP Jorge De La Rosa (thumb) is expected to miss his second straight start on Saturday. Rockies RHP Collin McHugh is the favorite to take his place. … Goldschmidt has four homers and 12 RBIs in the last six games.