Jacoby Ellsbury slugged a three-run home run in the top of the 14th inning at Yankee Stadium on Sunday night to allow the Red Sox to maintain a one-game lead over the Rays in the American League Wild Card race.
The win snapped a four-game losing streak. There are three games left in the regular season.
Boston held a nine-game lead over the Rays entering play Sept. 4 but has gone 5-16 since then.
They held a 1.5-game lead going into Sunday's action. The Rays beat the Blue Jays and the Red Sox lost the first game of a double-header against the Yankees.
"We just put ourselves in a good position, that's all we can do," Ellsbury said after the game.
Ellsbury Allows Red Sox To Keep One-Game Lead