Simplify the following text for a Grade 4 native English-speaking person.
Original: It was played between the Boston Red Sox and New York Yankees , at Fenway Park and the original Yankee Stadium , from October 12 to October 20 , 2004 . The Red Sox won the series four games to three , having been down three games to none in the best-of-seven series .
Simplified: It featured the New York Yankees and the Boston Red Sox .