Rockies 3, Diamondbacks 1
Troy Tulowitzki hit a two-run homer and Jhoulys Chacin pitched 6 1/3 shutout innings before leaving with left oblique stiffness as host Colorado won its seventh straight game.
Chacin (3-0), who missed a start in spring training because of back spasms, allowed three hits and also delivered a sacrifice fly. Chacin pitched into the seventh inning for the third time in 2013 after doing it twice in 14 starts last season before being shut down with a pectoral muscle injury.
Ian Kennedy (1-2) allowed three runs and three hits while striking out six in six innings for Arizona. Rookie Didi Gregorius had two hits for the second straight game after recording a pair in his season debut Thursday at Yankee Stadium.
Tulowitzki put the Rockies on top 2-0 when he hit a first-pitch fastball over the left field wall with two outs in the fourth inning. After Chris Nelson tripled to lead off the fifth, Chacin battled through an eight-pitch at-bat before lifting a sacrifice fly to center field to give Colorado a 3-0 lead.
Wilton Lopez relieved Chacin and struck out Cody Ross and A.J. Pollock to end the seventh inning, while Rex Brothers pitched a scoreless eighth. Rafael Betancourt allowed an unearned run in the ninth to earn his sixth save in as many chances as the Rockies improved to 7-0 at home.
GAME NOTEBOOK: Diamondbacks 1B Paul Goldschmidt, who had reached base in the first 15 games, went 0-for-4 with three strikeouts and a double play. ... Each starter retired their first nine batters before Arizona's Gerardo Parra led off the fourth inning with a single. ... Colorado last won seven consecutive games from April 9-15, 2011.