The NSIC and its member institutions have been members of the National Association of Intercollegiate Athletics (NAIA). Mankato State won wrestling national titles in 1958 and 1959, while Moorhead State won a wrestling national title in 1964. Forty-one wrestlers have claimed individual national titles in wrestling. Nine individuals have won national titles in Men's Swimming and Diving. Northern State claimed national titles in women's basketball in 1992 and 1994. Seven individuals have won individual titles in men's indoor track and field. Four individuals have won national titles in women's indoor track and field. Eleven athletes have won national titles in men's outdoor track and field. Six female athletes have won individual titles in outdoor track and field. Winona State won two team titles in women's gymnastics. In 1992, the NSIC entered the National Collegiate Athletic Association (NCAA). In the Fall of 1995, the NSIC and its member institutions became eligible for championship competition in the NCAA Division II ranks. The Northern Sun earned its first Division II national championship in a team sport sponsored by the conference when Winona State won the men's basketball championship in 2005–06.