Some special events are typical sports activities such as a softball tournament, while some special events are more unusual, such as innertube water polo. Intramural Sports Recreational Sports runs several student sport leagues each semester. Students can enter their own team or join a team as a free agent. Leagues are divided into different skill and gender divisions. Teams play once a week for five weeks at a regular day and time.
Most leagues have a two-week, single elimination post season tournament.
Recreational Sports provides sports officials for many leagues, while others are self-officiated. Intramural Sports include flag football, spring and fall basketball, spring and fall volleyball, indoor and outdoor soccer, arena football, tennis, softball, and ultimate frisbee. The purpose of these groups is to allow members to compete at a high level of competition approaching that of varsity sports. Sport Clubs represent the university in their respective leagues as they compete against other university teams. Many Chico State sport clubs are nationally ranked and regularly compete at the national level.