| 2024 | A Thurner |
| 2023 | J Wang |
| 2022 | J Wang |
| 2021 | E Bishop |
| 2020 | N / A |
| 2019 | N Sarmiento |
| 2018 | N / A |
| 2017 | N / A |
| 2016 | P Macdonald |
| 2015 | N Sarmiento |
| 2014 | A Ang |
| 2013 | L Guico |
| 2012 | L Guico A Ang |
| 2011 | L Guico |
| 2010 | B Rider |
| 2009 | R W Smith |
| 2008 | R W Smith |
| 2007 | R W Smith |
| 2006 | R W Smith |
| 2005 | R W Smith |
| 2004 | R W Smith |
| 2003 | P Godfrey R W Smith |