ðə ɹˈɪdʒfiːld məmˈoːɹɪəl hˈaɪ skˈuːl ɹˈɔɪəlz pɑːɹtˈɪsᵻpˌeɪt ɪnðə nˈɔːɹθ dʒˈɜːsi ˌɪntɚskəlˈæstɪk kˈɑːnfɹəns, wˌɪtʃ ɪz kəmpɹˈaɪzd ʌv smˈɔːlɛnɹˈoʊlmənt skˈuːlz ɪn bˈɜːdʒən, hˈʌdsən, mˈɔːɹɪs ænd pæsˈeɪɪk kˈaʊntiz, ænd wʌz kɹiːˈeɪɾᵻd fˈɑːloʊɪŋ ɐ ɹɪˌoːɹɡɐnᵻzˈeɪʃən ʌv spˈoːɹts lˈiːɡz ɪn nˈɔːɹðɚn nˈuː dʒˈɜːsi baɪ ðə nˈuː dʒˈɜːsi stˈeɪt ˌɪntɚskəlˈæstɪk æθlˈɛɾɪk ɐsˌoʊsɪˈeɪʃən ˌɛndʒˈeɪsˈaɪəə.
The Ridgefield Memorial High School Royals participate in the North Jersey Interscholastic Conference, which is comprised of small-enrollment schools in Bergen, Hudson, Morris and Passaic counties, and was created following a reorganization of sports leagues in Northern New Jersey by the New Jersey State Interscholastic Athletic Association (NJSIAA).