pɹˈiːviəsli, ðə skˈuːl wʌzɐ mˈɛmbɚɹ ʌvðɪ ˈɔːlpɹˈaɪvət pˈeɪtɹɪət kˈɑːnfɹəns, bˌʌt ˈæftɚɹ ɐ dᵻsˈɪʒən baɪ ðɪ ˌɛndʒˈeɪsˈaɪəə ɪn fˈɛbɹuːˌɛɹi tˈuː θˈaʊzənd ˈeɪt, bˈoʊθ hˈɔːθoːɹn kɹˈɪstʃən ɐkˈædəmi ænd sˈædəl ɹˈɪvɚ dˈeɪ skˈuːl dʒˈɔɪnd ðɪ əlˈɪmpɪk dᵻvˈɪʒən ʌvðə bˈɜːdʒən kˈaʊnti skəlˈæstɪk lˈiːɡ bˌiːsˌiːˌɛsˈɛl lˈeɪɾɚ ðæt jˈɪɹ, ænd ɹᵻmˈeɪnd ɪnðə kˈɑːnfɹəns ʌntˈɪl ɪt wʌz dɪsbˈændᵻd æz pˈɑːɹt ʌvðɪ ˌɛndʒˈeɪsˈaɪəə tˈuː θˈaʊzənd tˈɛn ɹˌiːɐlˈaɪnmənt.
Previously, the school was a member of the all-private Patriot Conference, but after a decision by the NJSIAA in February 2008, both Hawthorne Christian Academy and Saddle River Day School joined the Olympic Division of the Bergen County Scholastic League (BCSL) later that year, and remained in the conference until it was disbanded as part of the NJSIAA's 2010 realignment.