Big Red Machine
Beginning with the 1970 National League pennant, the Reds beat either of the two Pennsylvania-based clubs, the Philadelphia Phillies or the Pittsburgh Pirates to win their pennants (Pirates in 1970, 1972, 1975, and 1990, Phillies in 1976), making The Big Red Machine part of the rivalry between the two Pennsylvania teams. In 1979, Pete Rose added further fuel in The Big Red Machine being part of the rivalry when he signed with the Phillies and helped them win their first World Series championship in .