Oakland Athletics 1972 1973 1974The Oakland Athletics won the most World Series titles during the 1970's with 3. The Oakland Athletics beat the Cincinnati Reds four games to three in the 1972 World Series. The Athletics beat the New York Mets four games to three in the 1973 World Series, and beat the Los Angeles Dodgers four games to one in the 1974 World Series as they won their third straight title. The Pittsburgh Pirates, New York Yankees and the Cincinnati Reds each won two titles during the 1970's.