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. Arizona's 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.