Peavy was sent from the White Sox to the Red Sox in a three-team trade on July 30 and made his sixth start for Boston and first against his former team on Saturday night.
The Red Sox recorded five hits off White Sox left-hander John Danks (4-11, 4.35 ERA) in the fourth including RBIs from Ellsbury, Dustin Pedroia, and David Ortiz to extend the Red Sox lead to 5-2.
White Sox reliever Jake Petricka replaced Danks, who gave up 11 hits and five earned runs in five innings. Petricka’s wild pitch in the sixth inning gave up a run.
Jacoby Ellsbury hit a lead off single off Danks and advanced to third on first baseman Paul Konerko’s fielding error. Mike Napoli’s RBI single to left field gave the Red Sox a 1-0 lead in the first inning.
Conor Gillaspie and Josh Phegley singled to put runners on the corners with one out in the third inning. Alejandro De Aza beat out a possible double play to allow Gillaspie to tie it at 1-1.
In the bottom half of the third, Napoli and Jonny Gomes hit back-to-back doubles to give the Red Sox a 2-1 lead.
Alexei Ramirez singled, stole second and scored on Avisail Garcia’s single to center field to tie it 2-2 in the fourth inning. Xander Bogaerts added an RBI single for a 6-2 Red Sox lead in the fifth inning.
Sox right-hander Andre Rienzo (1-0, 4.21 ERA) and Red Sox left-hander Felix Doubront (10-6, 3.74 ERA) are the projected starters for three-game series finale in Boston on Sunday afternoon at 12:35 p.m. CT (CSN/WSCR 670).