[9][10] The Cinnaminson High School Pirates[2] compete in the Patriot Division of the Burlington County Scholastic League (BCSL), which is comprised of public and private high schools covering Burlington, Mercer and Ocean counties in Central Jersey, and operates under the supervision of the New Jersey State Interscholastic Athletic Association (NJSIAA).

[17] The boys' basketball team captured the Group III state title in 1982, defeating Linden High School in the tournament final.

[28] In 2007, the team won the South Jersey Group II state sectional championship with a 4–1 win over Delran High School in the tournament final.

[31] The 1991 team posted the program's first perfect season by going 11–0 and defeating Hammonton High School in the South Jersey Group II sectional championship game.

[32] In 2004, Cinnaminson running back and team co-captain Darrell "DJ" Riley set a single-game varsity football rushing record with 360 yards in only three quarters of play.

Collins, a 1986 graduate, went on to compete in football at Penn State, and before playing for the Bengals was a member of the 1991 Washington Redskins' Super Bowl team.

[18] The baseball team won the Group II state championship in 2013, defeating Mahwah High School by a 2–1 score in the finals of the tournament.

[33][34] In 2013, the team defeated West Deptford High School by a score of 8–1 to win the South Jersey Group II state title under head coach, Kevin Merrill.

[35] The 2003 baseball team lost in the South Jersey Group II state sectional title game, 16–12 to Manchester Township High School.