| 2019 | | Byford Secondary College | |
| 2018 | 19 Schools | Swan Christian College | Jennine Thomasson – Catholic Agricultural College Bindoon |
| 2017 | 194 Individuals | Great Southern Grammar | Jennine Thomasson – Catholic Agricultural College Bindoon |
| 2016 | 168 Individuals | Swan Christian College | Liz Richards – Kelmscott SHS |
| 2015 | 191 Individuals | Swan Christian College | Liz Richards – Kelmscott SHS |
| 2014 | 47 | Great Southern Grammar | Liz Richards – Kelmscott SHS |
|  2013 | 200 | Swan Christian College | Liz Richards – Kelmscott SHS |
| 2012 | 180 | Great Southern Grammar | Liz Richards |
| 2011 | 250 | Great Southern Grammar | Liz Richards |
| 2010 | 350 | Great Southern Grammar | Don Smailes |
| 2009 | 328 | Penrhos A | Don Smailes |
| 2008 | 320 | Helena College Senior School | Don Smailes |
| 2007 | 213 | Helena College Senior School | Don Smailes |