 The Red Sox won 15 games in a row in 1946 . They were unstoppable and were in first place all but two days in the season , and would play in their first World Series game since 1918 , having finished ahead of the Yankees in the American League for the first time since selling Babe Ruth . Since the Red Sox last pennant in 1918 , the Yankees had won 14 pennants and 10 World Series . Although the tide against the Yankees had turned , Boston would eventually lose the Series four games to three to the St. Louis Cardinals . 
