Jack Trice Stadium (originally Cyclone Stadium and formerly Jack Trice Field) is a stadium, in Ames, Iowa, United States. It is primarily used for college football, and is the home field of the Iowa State Cyclones. It opened on September 20, 1975, with a 17–12 win over Air Force. The current record for single-game attendance, 61,500, was set on September 5, 2015, when the Cyclones defeated the University of Northern Iowa 31-7.