List of all winners in the Open First CAS/GPS Waterpolo competition
Newington College
1988, 1991, 2001, 2003, 2007, 2012, 2013, 2014, 2015, 2017, 2018*, 2019, 2020*, 2021
St Aloysius’ College
2009, 2010, 2016
St Ignatius’ College Riverview
2000, 2008, 2011
The Scots College
1992, 1995, 1997, 1998, 2002, 2004, 2005, 2018*
Trinity Grammar School
1994, 1996, 2006, 2023
Knox Grammar School
2020* 2024
Waverley College
1989, 1990, 1993, 1999
* Joint Premiers
2022 not awarded due to Covid in Term 4 2021
The Len Nixon CAS Water Polo Premiership Shield first awarded 2018
St. Aloysius’ College
2019
Barker College
Cranbrook School
Knox Grammar School
2020, 2021, 2024, 2025*
Trinity Grammar School
2018, 2022, 2023, 2025*
Waverley College
* Joint Premiers