The 1989 World Series was the championship series of Major League Baseball's (MLB) 1989 season. The 86th edition of the World Series, it was a best-of-seven playoff played between the American League (AL) champion Oakland Athletics and the National League (NL) champion San Francisco Giants. The Series ran from October 14 through October 28, with the Athletics sweeping the Giants in four games. It was the first World Series sweep since 1976, when the Cincinnati Reds swept the New York Yankees. The four-game sweep by the Athletics at the time would mark only the third time in World Series history that a team never trailed in any game, with the 1963 Los Angeles Dodgers, 1966 Baltimore Orioles, and later the 2004 Boston Red Sox being the only other times this occurred, and the first in the playoff era (post-1968).