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
| Sport | League | CIF-SS |
|---|---|---|
| Football | 1958, 1964, 1968, 1974, 1985, 1988, 1990, 1992, 1993, 1994, 1995, 2015, 2018, 2023 | 1955, 1957, 1964, 1988, 2015 |
| Girls' Volleyball | 1973, 1982, 1983, 1988, 1989, 1990, 2018 | 1983 |
| Boys' Water Polo | 1968, 1969, 1970, 1971, 1974, 1975, 1977, 1978, 1982, 1983, 1987, 2023 | 1978, 1983 |
| Girls' Tennis | 1973, 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, 2023 | 1975, 1982, 1983, 1985, 1986, 1987, 1988, 1998, 2009, 2010, 2012, 2013, 2014, 2021, 2022 |
| Girls' Golf | 2015, 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, 2022 | 1959 |
| Girls Basketball | 1989, 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, 2019 | 2015 (Masters) |
| Baseball | 1958, 1969, 1971, 1973, 1975, 1980, 1990, 1992, 1993, 1994, 1995, 1996, 1997, 2014, 2023, 2024 | 1977, 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, 2023 | 1956, 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, 2024 | 1975, 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 |
