Lucas Giolito pitched seven sharp innings in his third straight quality start, and the Chicago White Sox beat the Detroit Tigers 6-1 on Saturday night.

Giolito (10-9) allowed a run and three hits, lowering his ERA to 5.85. It's still the worst mark in the major leagues of anyone who qualifies for the ERA title, but the 23-year-old right-hander has been a bit better since the All-Star break. He walked one and struck out six against Detroit.

Kevan Smith hit a two-run homer for the White Sox, and Mikie Mahtook went deep for the Tigers.

Ryan Carpenter (1-2) gave up six runs and nine hits in 4 1/3 innings.

The White Sox took an immediate 1-0 lead in the first when Tim Anderson drew a leadoff walk and scored on Jose Rondon's double. Smith's drive made it 3-0 an inning later.

After Mahtook homered in the bottom of the second, Chicago responded with two runs in the third on an RBI single by Yoan Moncada and a sacrifice fly by Ryan LaMarre. Matt Davidson brought home another run with a double in the fifth.

The White Sox have won eight of 11, and this was the second time this month that Giolito has gone seven innings with only one run allowed. He also did it in a no-decision Aug. 3 at Tampa Bay.