College club sports in the United States are any sports offered at a university or college in the United States that compete competitively with other universities, or colleges, but are not regulated by the National Collegiate Athletic Association (NCAA) or National Association of Intercollegiate Athletics (NAIA), and do not have varsity status. Collegiate club sports can exist at schools that do have teams that are part of the NCAA or NAIA. Many times, club sports are student-run and receive little financial aid from the school. An estimated 2 million student athletes compete in club sports.