High Quality Content by WIKIPEDIA articles! The Reading Phillies are a minor league baseball team based in Reading, Pennsylvania, playing in the Southern Division of the Eastern League. Since the 1967 season, they have been the AA affiliate of the Philadelphia Phillies. The R-Phils affiliation with the Big Phils has lasted unbroken since 1967, and this relationship was solidified even further when the Philadelphia Phillies purchased a controlling interest in the Reading Phillies in 2008. The Reading Phillies play in FirstEnergy Stadium, previously known as Reading Municipal Memorial Stadium. Built in 1951, the stadium seats 9,000 fans. On July 3rd, 2007, the stadium celebrated their ten-millionth fan to attend a game.