 To start the 2015 MLB season edition of the rivalry , the Red Sox team 's first game at Yankee Stadium on Friday , April 10 went into extra innings ended up being one of the longest games ever played — at six hours and 49 minutes — going 19 innings , with the Yankees tying the game three times in the bottom of the 9th , 14th , and 16th , ending in a 6 @-@ 5 victory for the Sox . During the first game of the first series at Fenway on May 1 , Alex Rodriguez , coming of a suspension for PED use the year prior , hit his first ever career pinch hit homerun that would prove to be the winning run in the game and tie him with Willie Mays on the all @-@ time homerun list . On May 3 , the Yankees completed a weekend sweep of the Red Sox at Fenway . 
