| 2023 | 7 | Open | Como Secondary College / St Hildas ASG | Allyce Sewell |
| 2022 | 9 | Open | Como Secondary College | Allyce Sewell |
| 2021 | 7 | Open | Como Secondary College | Allyce Sewell |
| 2020 | 8 | Open | Como Secondary College | Allyce Sewell |
| 2019 | 12 | Open | Como Secondary College | Allyce Sewell |
| 2018 | 8 | Open | Como Secondary College | Allyce Sewell |
| 2017 | 7 | Open | Como Secondary College | Allyce Sewell |
| 2016 | 10 | Open | Como Secondary College | Peter Sinclair |
| 2015 | 6 | Open | Bunbury SHS | Peter Sinclair |
| 2014 | | Open | Â Penrhos College | Peter Sinclair |
| 2013 | | Open | Â Penrhos College & Great Southern Grammar (Joint Winners) | Peter Sinclair |
| 2012 | | Open | Â Penrhos College | Peter Sinclair |
| 2011 | | Open | Â Como Secondary College | Peter Sinclair |
| Â 2010 | | Open | Â Como Secondary College | Peter Sinclair |
| 2009 | | Open | Como Secondary College | Peter Sinclair |
| 2008 | 27 | Open | Como Secondary College | Peter Sinclair |
| 2007 | 28 | Open | Como Secondary College | Tate Napier |
| 2006 | 30 | Open | Penrhos College | Tate Napier |
| 2005 | | Open | Como Secondary College | Tate Napier |
| 2004 | 15 | Open | Como Secondary College | Tate Napier |
| 2003 | 15 | Open | Â Penrhos College | Milanna Heberle |
| 2002 | | Open | Como Secondary College | Milanna Heberle |
| 2001 | | Open | Como Secondary College | Milanna Heberle |
| 2000 | | Open | Como Senior High School | Milanna Heberle |
| 1999 | | Open | Methodist Ladies College | Milanna Heberle |
| 1998 | | Open | Collie Senior High School | Milanna Heberle |
| 1997 | | Open | Como Senior High School | Milanna Heberle |
| 1996 | | Open | Collie Senior High School | Milanna Heberle |
| 1995 | | Open | Como Senior High School | Milanna Heberle |
