ðə mˈɪdəlsˌɛks hˈaɪ skˈuːl blˈuː dʒˈeɪz kəmpˈiːt ɪnðə ɡɹˈeɪɾɚ mˈɪdəlsˌɛks kˈɑːnfɹəns, wˌɪtʃ ɪŋklˈuːdz pˈʌblɪk ænd pɹˈaɪvət hˈaɪ skˈuːlz loʊkˈeɪɾᵻd ɪnðə ɡɹˈeɪɾɚ mˈɪdəlsˌɛks kˈaʊnti ˈɛɹiə ænd ˈɑːpɚɹˌeɪts ˌʌndɚ ðə suːpɚvˈɪʒən ʌvðə nˈuː dʒˈɜːsi stˈeɪt ˌɪntɚskəlˈæstɪk æθlˈɛɾɪk ɐsˌoʊsɪˈeɪʃən ˌɛndʒˈeɪsˈaɪəə.
The Middlesex High School Blue Jays compete in the Greater Middlesex Conference, which includes public and private high schools located in the greater Middlesex County area and operates under the supervision of the New Jersey State Interscholastic Athletic Association (NJSIAA).