The Xfinity Center is an outdoor amphitheatre located in Mansfield, Massachusetts. The venue opened during the summer of 1986 with a capacity of 12,000. It was expanded after 2000 to 19,900; 7,000 reserved seats, 7,000 lawn seats and 5,900 general admission seats. The season for the venue is typically from mid May until late September. In 2010, it was named Top Grossing Amphitheater by Billboard. It mainly hosts concerts; other events, such as graduation ceremonies, including that of Mansfield High School, occasionally take place.