PHOENIX -- Drew Stubbs hit his first home run of the season, off closer Addison Reed in the ninth inning, to lift the Colorado Rockies over the Arizona Diamondbacks 5-4 on Tuesday night.
Troy Tulowitzki had his second big game in a row in Arizona, hitting a two-run homer to put the Rockies up 4-3 in the sixth. A.J. Pollock tied it with a two-out home run in the eighth.
Stubbs, who entered in a double switch in the eighth, hit a 2-2 pitch from Reed (0-2) into the right field seats, his first homer in 43 at-bats this year.
Boone Logan (1-0) gave up Pollock's homer but got the victory. LaTroy Hawkins allowed two hits in a scoreless ninth for his ninth save.
The Diamondbacks dropped their fourth straight, all at home, to fall to 2-13 at Chase Field this season.
Colorado starter Tyler Chatwood left in the sixth with tightness in his right elbow.
Tulowitzki also had a single and scored twice. In the first two games of the series, he is 5 for 6 with five RBIs and two home runs.
Colorado's Nolan Arenado had an RBI single to extend his hitting streak to 19 games, longest in the majors this season. Justin Morneau's RBI triple extended his hitting streak to 13 games.
Trailing 3-2, Colorado took the lead with two runs in the sixth.
Carlos Gonzalez led off with a double to right, then Tulowitzki hit Mike Bolsinger's 0-1 pitch into the swimming pool area beyond the right field fence to make it 4-3.
Arizona batters had struck out four straight times when, with two outs in the eighth, Pollock hit Logan's 0-1 pitch high off the foul pole in left field to tie it at 4.
Arizona scored two in the second. Miguel Montero led off with a double, went to third when Chatwood threw wildly on a pickoff attempt and scored on Aaron Hill's sacrifice fly. Eric Chavez walked, then scored from first on Chris Owings' two-out double down the left field line.
The Rockies tied it with two in the fourth. With two outs, Tulowitzki singled and scored on Morneau's triple to right, where the ball bounced away from Gerardo Parra. Arenado singled up the middle to bring Morneau home.
The Diamondbacks regained the lead, 3-2, in the third. Hill doubled with one out and scored when Chavez singled.
Bolsinger left after giving up four straight hits to start the sixth, including Gonzalez's leadoff double and Tulowitzki's homer. With runners at first and second and no outs, reliever Oliver Perez got Corey Dickerson to pop out, then struck out Jordan Pacheco and Chatwood.
The Diamondbacks loaded the bases against Chatwood with no outs in the sixth and got nothing out of it. Hill walked, Chavez singled and Pollock walked. That brought the Rockies' trainer to the mound and ended the night for Chatwood.
Chris Martin, in his second major league appearance, got Owings to bounce to third for a force at home, then pinch-hitter Roger Kieschnick struck out and Tony Campana bounced out to third.