Jhoulys Chacin pitched seven innings and his run double capped a six-run opening frame against Brett Myers, on the way 5 Colorado triumph over the Houston Astros in the opener of a three- game series.

Carlos Gonzalez continued his hot hitting with a homer and three RBI for the Rockies, who have put together three straight wins for the first time since July 27-30.

Chacin (10-10) gave up 11 hits, but just one run to win for only the second time in his last 12 starts.

Gonzalez extended his hitting streak to 10 games. He has an RBI in seven consecutive contests, tying a career-high. Over those seven contests, Gonzalez has driven in 14 runs.