DENVER (AP) — Jon Gray tossed six strong innings in another solid outing for Colorado starters, and the Rockies beat the Pittsburgh Pirates 6-2 on Wednesday.

Garrett Hampson had four hits for the Rockies, who swept the three-game series and improved to 28-16 at home. Colorado is just 6-31 on the road.

A day after being no-hit by German Marquez for eight innings, the Pirates jumped on Gray for their first runs of the series. Adam Frazier led off the game with a triple, scored on a sacrifice fly and Bryan Reynolds hit his 14th homer for a quick 2-0 lead.

Gray (5-6) didn’t give up another hit before leaving four a pinch-hitter in the sixth. He walked four — one intentional — hit a batter and struck out five to continue the strong run of outings by Colorado starters.

The three starters in the series combined to allow just two runs and six hits over 20 innings. Pittsburgh finished with only nine hits in the three games.

C.J. Cron’ led off the Colorado fourth with his 11th home run. The Rockies scored two more in the fifth off Pittsburgh starter Chad Kuhl (2-5)