 Grand Forks is home to two major indoor athletic arenas . The city @-@ owned Alerus Center opened in 2001 . The Alerus Center is home to the University of North Dakota football team and also plays host to a variety of other events including major concerts . The Alerus Center is the largest arena and convention center complex in the upper Midwest area . The University of North Dakota hockey teams compete in the Ralph Engelstad Arena , located in the University Village district of the UND campus . " The Ralph " , as it is commonly called , was funded by UND benefactor Ralph Engelstad and opened in 2001 at a cost of over $ 100 million . Adjacent to the Ralph Engelstad Arena is the smaller Betty Engelstad Sioux Center . " The Betty " is the home of the University of North Dakota basketball and volleyball teams . 
