The 1970 World Series was the championship series of Major League Baseball's (MLB) 1970 season. The 67th edition of the World Series, it was a best-of-seven playoff between the American League champion Baltimore Orioles and the National League champion Cincinnati Reds (102–60). The Orioles defeated the Reds in five games for their second championship. As of 2026, this is the last time the Orioles won the World Series at home. Won the 1970 World Series on October 15, 1970. Wiki link