BOSTON — Daniel Nava singled in the go-ahead run to cap a three-run eighth inning and the surging Red Sox completed a sweep of the stumbling Marlins 6-5 Thursday night.
Boston tied it on a two-run homer by Will Middlebrooks, who drove in four runs. Ryan Kalish then singled, raced to third on a groundout to first and scored on Nava's hit up the middle.
Alfredo Aceves pitched a perfect ninth for his 18th save in 21 opportunities. Scott Atchison allowed one hit over the seventh and eighth.
The Red Sox won their fifth straight and matched their season-best mark of three games over .500.
The Marlins took a lead in all three games but lost them all as they dropped their 13th in their last 15.
Jarrod Saltalmacchia started the winning rally in the eighth with a double off Randy Choate. Edward Mujica came in and served up Middlebrooks' tying shot.