DENVER — Steven Brault hit his first major league homer and pitched effectively into the seventh inning to lead Pittsburgh over Colorado for a four-game sweep. Adam Frazier homered on the first pitch of the game, the second straight day the Pirates did that.

Brault (4-3) allowed only one hit until Nolan Arenado lined a two-out fastball into the seats in left field in the sixth for his 35th home run. Brault left in the seventh when the Rockies got a run on two hits and an error, but Richard Rodriguez got out of the jam by fanning Trevor Story.

Brault socked a solo homer that made it 3-1 in the top of the seventh. He allowed just one earned run and four hits in 6 1/3 innings.

Josh Bell and Colin Moran each hit an RBI single for the Pirates. Bryan Reynolds had three hits.