San Marino competes in the Southern Section of the California Interscholastic Federation. San Marino is also a member of the Rio Hondo League, which includes Blair HS, La Canada HS, Monrovia HS, South Pasadena HS, and Temple City HS. Over the last 67 years, San Marino has won around 300 league titles and 77 CIF Team Championships.

LAST UPDATED 4/25/2023

SportLeagueCIF-SS
Football1958, 1964, 1968, 1974, 1985, 1988, 1990, 1992, 1993, 1994, 1995, 2015, 2018, 2023 1955, 1957, 1964, 1988, 2015
Girls' Volleyball1973, 1982, 1983, 1988, 1989, 1990, 20181983
Boys' Water Polo1968, 1969, 1970, 1971, 1974, 1975, 1977, 1978, 1982, 1983, 1987, 2023 1978, 1983
Girls' Tennis1973, 1975, 1980, 1982, 1983, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1993, 1996, 1997, 1998, 1999, 2001, 2002, 2003, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2021(s), 2021, 2022, 20231975, 1982, 1983, 1985, 1986, 1987, 1988, 1998, 2009, 2010, 2012, 2013, 2014, 2021, 2022
Girls' Golf2015, 2018, 2019 2015
Boys Cross Country 1961, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1974, 1975, 1977, 1978, 1987, 1989, 1990, 1991, 1992, 1993, 1994, 1996, 1999, 2001, 2005 1963, 1964, 1965, 1966, 1969, 1970, 1974, 1990, 1991, 1993
Girls Cross Country 1977, 1978, 1980, 1983, 1989, 1990, 1991, 1993, 1994, 2013 1978, 1980, 1990
Boys Basketball 1956, 1957, 1958, 1960, 1963, 1968, 1974, 1975, 1976, 1978, 1981, 20221959
Girls Basketball1989, 1990, 1997, 2000
Boys Soccer 1987, 1989, 1999, 2006
Girls Soccer 1984, 2010, 2013, 2015
Girls Water Polo
Wrestling 1968, 1969, 1970, 1971, 1998, 2008, 2013, 2014, 2015, 2016, 20192015 (Masters)
Baseball 1958, 1969, 1971, 1973, 1975, 1980, 1990, 1992, 1993, 1994, 1995, 1996, 1997, 2014, 2023, 20241977, 1984, 1990, 1992, 1995
Softball 1984, 1986
Boys Tennis 1957, 1958, 1959, 1960, 1961, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1973, 1974, 1975, 1976, 1978, 1979, 1980, 1983, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2022, 20231956, 1960, 1962, 1963, 1964, 1965, 1967, 1968, 1969, 1972, 1975, 1977, 1978, 1987, 1988, 1990, 1992, 1996, 1997, 1998, 1999, 2000, 2007, 2013, 2014
Boys Volleyball 1975, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2005 2018, 2024
Boys Golf 1967, 1974, 1975, 1976, 1978, 1979, 1990, 1991, 1992, 1995, 1996, 1997, 1998, 1999, 2003, 2004, 2005, 2021
Badminton 2013, 2014, 2016 2019
Boys Swimming 1957, 1959, 1961, 1965, 1966, 1967, 1969, 1970, 1971, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 2014, 2016, 2017, 20241975, 1976, 1977, 1978, 1988, 1989, 1990, 1991
Girls Swimming 1974, 1976, 1979, 1981, 1984, 1986, 1987, 1988, 1989, 1991, 2005, 2011, 2016, 2017, 2019, 2022
Boys Track & Field 1957, 1960, 1961, 1967, 1968, 1970, 1971, 1975, 1979, 1988, 1989, 1990, 2000
Girls Track & Field 1981, 1990, 1992, 1994, 2003, 2005