Fallbrook Union High School competes in the Avocado League and in Division III
CIF. In 1986 and 2000 the varsity football team won CIF championships. The school also competes in the boys' sports of baseball, basketball,
cross country, football, golf,
lacrosse,
rugby, soccer, swimming, tennis, track, volleyball,
water polo, and
wrestling, as well as competing in the girls' sports of basketball, cross country,
field hockey, golf, gymnastics, lacrosse, rugby, soccer, softball, swimming, tennis, track, volleyball, and water polo. Fallbrook's girls' rugby U-18 team have been high school national champions five times: 2011, 2012, 2013, 2014, and 2015. ==History==