Rafael Devers bombed a grand slam, Casey Schmitt hit his third home run in the last four games and the San Francisco Giants outslugged the visiting Chicago White Sox 8-5 in the finale of their three-game interleague series Sunday afternoon.

Schmitt also doubled, scored three times and drove in three runs for the Giants, who have put up 18 runs in the last two days after totaling 12 in a four-game losing streak.

Chase Meidroth led off the game with his fourth homer and Miguel Vargas launched his 12th for the White Sox, who completed a 2-4 Western swing.

After Edgar Quero's RBI single capped a two-run fifth for the White Sox that produced a 4-4 tie, the Giants needed just four batters in the bottom of the inning to double their run total.

Chicago starter Noah Schultz (2-4) was gone after serving up a double to Willy Adames and hitting Luis Arraez to open the inning, after which Grant Taylor walked Schmitt and watched Devers' eighth career grand slam sail over the wall in left-center field.

Vargas' homer made it an 8-5 game in the seventh, but Matt Gage, Erik Miller and Caleb Kilian combined to retire the final nine White Sox hitters in order, with Kilian earning his third save after a 1-2-3 ninth.

Keaton Winn (1-1), who threw two scoreless innings, was credited with the win.

The Giants' first four runs were the product of back-to-back RBI doubles by Schmitt and Devers in the first and Schmitt's 11th homer, a two-run shot, in the third.

Schultz was charged with six runs on six hits in his four-plus innings. He walked one and struck out one.

After Meidroth's homer on Robbie Ray's eighth pitch, Luisangel Acuna hit a sacrifice fly in the fourth and Colson Montgomery preceded Quero's game-tying hit in the fifth with an RBI infield out.

Like his counterpart, Ray lasted just four-plus innings, during which he allowed four runs despite giving up just two hits. He walked seven and struck out three.

Devers finished with five RBIs for the Giants, who out-hit the visitors 11-4. Adames and Arraez scored twice apiece, while Matt Chapman had a pair of singles.

Vargas scored a pair of runs for the White Sox, who went 1-for-8 with runners in scoring position.