TCS is a member of the New Jersey Schools Interscholastic Athletic Association (NJSIAA). The New Jersey State Interscholastic Athletic Association, founded in 1918, is a voluntary, non-profit organization made up of 425
accredited public, private and parochial high schools in the state. The New Jersey Association joining with the other forty nine State Associations constitutes the National Federation of State High School Associations which has represented the best interests of high school athletics since 1920, and today represents 22,000 schools, more than 330,000 coaches, and almost 4.5 million high school athletes.

As of 2010, TCS is a proud member of the Greater Middlesex Athletic Conference (GMC). The GMC consists of 36 member schools including every public school in Middlesex County. TCS competes divisionally in the GMC Gold Division. All TCS athletes have the opportunity to pursue divisional championships, county championships, all-divisional, and all county recognition. Check out the Greater Middlesex Conference here.