DENVER -- — Troy Johnston hit a solo homer, a double and a single and the Colorado Rockies rode an eight-run fifth inning to a 9-7 victory over the Houston Astros on Monday night. Edouard Julien, TJ Rumfield, and Willi Castro also had multi-hit games as the Rockies banged out 12 hits. Julien had a two-run single in the fifth inning that started the eight-run outburst. Rumfield had a two-run triple — the first triple of his career — during the scoring outburst. He has reached base safely in all but one game since making his big league debut on March 27. Johnston added an insurance run with a 407-foot homer in the sixth. Ryan Feltner (1-0) allowed seven hits and four earned runs while striking out one in 5 1/3 innings for the win. Juan Mejia earned his first save of the season after a hitless 1 2/3 innings to finish the game. Astros starter Cody Bolton and Ryan Weiss (0-1) combined to allow 11 hits and eight runs. Carlos Correa had an RBI double and Christian Walker knocked him in with a single in the first, giving the Astros an early lead. Cam Smith added a 462-foot solo homer in the fourth. The Astros chipped away in the seventh and eighth innings with RBI from Jose Altuve, Joey Loperfido, and Yainer Diaz, but their comeback try fell short. Up next Rockies LHP Kyle Freeland (0-1, 2.89) faces Astros RHP Mike Burrows (1-1, 5.91) in the second game of the series on Tuesday. ------ AP MLB: https://apnews.com/hub/mlb