The surging Pirates and the rejuvenated Rockies will begin a three-game series Friday that will wind up Colorado's homestand and launch Pittsburgh's long road trip.
Jeff Hoffman (6-1, 4.33 ERA) will start for the Rockies and be opposed by Trevor Williams (3-4, 4.69).
The Pirates, coming off a four-game sweep of Milwaukee, have won a season-high five straight games, eight of their past nine and 11 of their past 13. Since the All-Star break, the Pirates have won three games in the ninth inning or later. During their winning streak, the Pirates have scored four runs four times and three runs once, winning three games by one run and one game by two.