Josh Hader cruised through six one-hit innings and the Sky Sox won their fourth in a row, topping Nashville 5-1.
Top Milwaukee prospect Lewis Brinson doubled and scored a run in a 2-for-5 performance, left fielder Brett Phillips had three hits and Nate Orf stole home.
This was the second time in three starts this season that Hader - the No. 2 prospect in the Brewers' organization according to Baseball America - has gone at least five innings and given up just one hit. He has given up seven hits in 14 innings this year in a 2-1 start.
Hader threw 89 pitches. He faced one batter in the seventh inning.
The Sky Sox went just 3 for 16 with runners in scoring position, but scored twice without putting the ball in play. Orf was credited with a two-out steal of home with Brinson batting in the eighth inning. Eric Sogard scored in the ninth on a wild pitch.
The Sky Sox (7-3) clinched a three-game series victory over Nashville and return home vs. Memphis on Tuesday. They have outscored foes 22-5 during the four-game streak, holding the Sounds to one run in three straight.