Former AFL player and coach,
Brenton Sanderson commenced as the school's Director of Sport in 2023. Their sequential sports program provides opportunities for students of all abilities to benefit from elite coaching programs, established through partnerships with highly credentialled coaches, talent pathway programs and professional sporting clubs. Saturday sport is compulsory for all students in Years 7–12, with boys competing in the Associated Grammar Schools of Victoria (AGSV) competition and girls in the combined AGSV / Associated Public Schools (APS) competition in both Summer and Winter sports. On Saturday 29 January 2022, Mentone Grammar's 2022 Head Prefect, Evie Stansby made Mentone Grammar sporting history by becoming the first female to earn a place on their First XI cricket team.
AGSV and AGSV/APS premierships Mentone Grammar has won the following AGSV and AGSV/APS premierships.
Boys: • Athletics (6) – 1982, 1983, 1984, 1986, 1987, 1996 • Cricket (12) – 1965, 1966, 1975, 1984, 1986, 1987, 2000, 2002, 2007, 2012, 2015, 2017 • Golf – 2005 • Soccer – 1993 • Squash (2) – 2001, 2002 • Swimming (36) – 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1982, 1983, 1984, 1985, 1986, 1987, 1995, 1996, 2003, 2004, 2005, 2006, 2010, 2011, 2012, 2014, 2015, 2016, 2017, 2018, 2019 • Table Tennis (4) – 2004, 2006, 2007, 2008 • Tennis (19) – 1961, 1966, 1974, 1976, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 2000, 2001, 2002, 2003, 2005, 2006, 2012, 2016 • Volleyball (5) – 2010, 2016, 2018, 2019, 2023
Girls: • Athletics (4) – 2019, 2022, 2023, 2024 • Cross Country (6) – 2017, 2018, 2019, 2022, 2023, 2024 • Swimming (7) – 2014, 2015, 2016, 2017, 2018, 2022, 2024 • Touch Football (8) – 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024 == Notable alumni and staff ==