While the Red Sox and Yankees are generally considered to be the greatest rivalry in sports, the two have only met in the playoffs 4 times (if you count the 1978 playoff, which MLB does not). The meat of the feud really comes from the regular season battles that the two teams have waged since the early 1900s. So, with another late season match-up underway, here is the Top 10 Regular Season Series in the storied history of the Rivalry:
October 1-2, 1949: Yankee Stadium