State Champions
Archbishop Williams - Girls Basketball 1996, 2013, 2015, 2017, 2018. -Boys Baseball 1992, 1995, 2018 - Boys Basketball 2023 Arlington Catholic - Football (1993, 2008), Girls Basketball (2011, 2014), Boys Basketball (1996), Boys Ice Hockey (1978, 1990, 1997), Girls Ice Hockey (2007, 2012). Austin Prep - 2009 Football, 2016 Girls Hockey, 2020 Girls Hockey, 2018 Baseball, 2020 Indoor Track. Bishop Feehan - Boys Cross Country Team All-State Champions - 1987, 1993, 1994, 2003, 2008, 2011 Girls Cross Country Team All-State Champions - 2003, 2009, 2010, 2011, 2012 Bishop Fenwick - Boys- Baseball (2004), Football (1965, 1999, 2000, 2013), Hockey, and Indoor and Outdoor track in boys' sports. Girls- Softball (1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997), Field Hockey, Cross-Country track (1980), Girls Basketball (2016) and indoor and outdoor track. Cardinal Spellman - 2014 Boys Basketball, 2009 Girls Soccer, 2003 Softball, 2001 Softball, 1993 Football, 1993 Boys Golf, 1990 Boys Golf, 1984 Boys Basketball. Cathedral - Boys Basketball 2006, 2007, 2009. Football 2012. Girls Basketball 2016, 2017. Cristo Rey Boston - Boys Basketball 2008. (As North Cambridge Catholic High School) Lowell Catholic - Boys Baseball 2013. Boys Ice Hockey 2017 Marian - Football 1992, 2001, 2002. Girls Soccer 1999. Girls Basketball 1996, 2006. Baseball 2003. Matignon - Boys Ice Hockey 1975, 1977, 1980, 1981, 1982, 1983, 1984, 1987, 1988, 1993 Pope John XXIII - Football 1998. Saint Clement - Football 1984. Boys Basketball 2014. St. Joseph Prep - Boys Baseball 2021. '''St. Mary's''' - Baseball 1987, 1988, 2015. Boys Basketball 2000, 2001, 2002, 2012, 2016. Girls Basketball 2001, 2002, 2011, 2014. Football 2005. Boys Golf 2005, 2006, 2017. Girls Ice Hockey 2005, 2008, 2009, and 2010. Boys Soccer 1988. Softball 2008. Boys Ice Hockey 2017. Boys Basketball 2026. ==Conference Championships==