Pirates 3, Red Sox 2: Gerrit Cole struck out seven in seven-plus innings and Starling Marte homered as Pittsburgh wrapped up a three-game sweep of visiting Boston.

Ike Davis and Chris Stewart each added an RBI for the Pirates, who moved 3 1/2 games ahead of the Milwaukee Brewers in the race for the second National League wild card. Cole (10-5) was charged with two runs on six hits and Mark Melancon worked out of a first-and-third, none-out jam in the ninth to earn his 30th save.

Brandon Workman (1-10) was reached for three runs – two earned – on seven hits and three walks in five innings for the Red Sox, who totaled three runs in the series. Mookie Betts had an RBI single and a stolen base while Christian Vazquez scored twice to highlight the Boston offense.

Pittsburgh loaded the bases on a walk, an error and an infield single in the first inning before Workman walked Davis to force in a run. Vazquez singled and scored on Betts’ RBI single in the third to tie it but Stewart came up with runners on second and third in the fourth and sent a single into center to push across Davis with the go-ahead run.

Marte smashed his 13th home run to left in the fifth to make it a 3-1 gap. Cole was removed after yielding back-to-back singles to open the eighth, and Tony Watson allowed one of the inherited runners to score on Xander Bogaerts’ sacrifice fly but escaped further damage before Melancon worked into and out of trouble in the ninth.

GAME NOTEBOOK: Boston finished interleague play 9-11, marking the first time the team did not post a winning record in interleague play since going 5-13 in 2002. … Red Sox utilityman Brock Holt (concussion) was examined again by a concussion specialist Thursday and showed improvement, but is not yet ready to return to games. … Pirates 3B Josh Harrison went 2-for-4 to improve his National League-leading average to .319 as Colorado’s Justin Morneau went 0-for-5 to fall to .317.