HOUSTON, April 19 (UPI) -- Brad Hawpe's fifth inning RBI single was the difference Saturday in the Colorado Rockies' 3-2 win over the Houston Astros.
Cook (2-1) yielded two runs -- one earned -- and four hits in seven innings, with a walk and four strikeouts.
Manny Corpas earned his fourth save this season.
Houston got one run on J.R. Towles' solo homer in the third and one on Miguel Tejada's double-play groundout in the first.
No player had more than one hit for the Astros, who have lost four of five.
The losing pitcher was reliever Oscar Villarreal (0-3).