Denver, CO (SportsNetwork.com) - Josh Rutledge hit a two-run homer, Eddie Butler tossed six solid innings for his first major-league win and the Colorado Rockies defeated the Arizona Diamondbacks, 5-1, on Saturday.

Corey Dickerson homered, tripled and drove in two runs, while Ben Paulsen hit an RBI single for the Rockies, who have won five straight games.

Butler (1-1) was strong in his second career start, surrendering just one run on five hits and one walk with a strikeout.

Jake Lamb homered and Miguel Montero had three hits for Arizona, which has lost the first three games of this four-game set.

Trevor Cahill (3-12) dropped his fourth straight decision after allowing 10 hits and five runs with eight strikeouts across five frames.

Justin Morneau got aboard with a two-out single to left in the first inning and scored when Dickerson tripled to left-center field, giving the Rockies the early lead.

Charlie Blackmon led off the third by smacking a liner to the base of the wall in center for a triple and Rutledge followed with a two-run blast to center for a 3-0 lead.

Morneau kept the rally going with a double to right that David Peralta lost in the sun, moved to third on Dickerson's fly out to left-center field and scored on Paulsen's short flare to left.

Lamb got Arizona on the board with a solo shot to right with one out in the fifth, but Dickerson answered back in the bottom half with a leadoff blast into the bullpen in right for a 5-1 game.

Montero doubled for Arizona to start the seventh and moved to third, but was left stranded after Didi Gregorius struck out to end the frame.