By MICHAEL KELLY
DENVER (AP) - Carlos Correa hit one of Houston's four home runs, Brett Olberholtzer pitched effectively into the seventh inning and the Astros continued their power surge Wednesday night in an 8-4 win over the Colorado Rockies.
Chris Carter, Preston Tucker and Jake Marisnick also homered for the first-place Astros, who have won four straight and lead the majors with 95 home runs. Correa and George Springer had three hits each.
Olberholtzer (2-1) followed up his eight shutout innings against Seattle on Friday with another strong outing. He allowed three runs and eight hits, struck out five and didn't walk a batter in 6 1-3 innings.
He worked around Charlie Blackmon's leadoff double in the sixth but left after allowing Nick Hundley's RBI single in the seventh.
Copyright 2015 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.