Athletics Center O'rena is a 3,000-seat multi-purpose arena in Auburn Hills, Michigan. It is home to the Oakland University Golden Grizzlies men's basketball, women's basketball and volleyball teams. The court has a distinctive "blacktop" color first used in the 2015–16 season. The facility opened November 17, 1998, with a 96–66 loss to Michigan State University in men's basketball. The opening of the O'rena coincided with Oakland's move from Division II of the National Collegiate Athletic Association (NCAA) to Division I.