| Season | A Grade | B Grade | C Grade | D Grade | E Grade |
| 1978/1979 | Ray Carpenter | Bruce Worthington | Mike Stutchbury | Phil Palm | n/a |
| 1979/1980 | John Anderson & Mike Stutchbury | Robert Barclay | Steve Doyle | Stephen Jackson | n/a |
| 1980/1981 | ? | Richard Hunter | ? | ? | n/a |
| 1981/1982 | ? | Barry Lawson? | ? | ? | ? |
| 1982/1983 | Ray Carpenter | Peter Zacpal | ? | ? | ? |
| 1983/1984 | Ray Carpenter | Richard Hunter | Paul Wright | John Ghee | Luke Oliver |
| 1984/1985 | Graham Gallasch (7) | Christopher McDonough (9) | Jeff Parker (8) | John Ghee (13) | Darren Cheek (10) |
| 1985/1986 | Andrew Van Mierlo (7) | Stewart Gray (6) | Adam Strudwick (6) | John Ghee (12) | Clive Dangerfield (10) |
| 1986/1987 | Michael Helbig (7) | Stewart Gray (6) | Peter Griffin (8) | Clive Dangerfield (6) | n/a |
| 1987/1988 | Steve Doyle & Graham Gallasch (11) | Jason Littlefield (9) | Peter Griffin (17) | Scott Attiwill (11) | n/a |
| 1988/1989 | Steve Doyle (5) | Wayne Gebert (7) | Damian Doudle (6) | Aaron Sard (7) | n/a |
| 1989/1990 | Mark Hayden (9) | Stewart Gray (6) | Wayne Gebert (5) | Ryan Malin (5) | n/a |
| 1990/1991 | Mark Eglinton | Steve Doyle | Matt Belton | Michael Keane | n/a |
| 1991/1992 | Steve Doyle & Mark Eglinton | Brian Dennison | Darren Decesare | Ken Marshall | n/a |
| 1993/1994 | Darren Coulter & Darren Decesare | Tom Charlton | Clive Dangerfield | Tim Ireland | n/a |
| 1994/1995 | Darren Coulter | Damien Trus | Wayne Gebert | Ben Clarke | n/a |
| 1995/1996 | Darren Coulter | ? | ? | ? | n/a |
| 1996/1997 | Darren Coulter | Darren Decesare | Luke Griffiths | David Billett (10) | n/a |
| 1997/1998 | Chris Lay (7) | Andrew Magarey (6) | Ben Clarke (7) | Darren Ball (4) | n/a |
| 1998/1999 | Andrew Langmaid | Paul Champion | Shane Schembri | Robert Morley | n/a |
| 1999/2000 | Andrew Langmaid (11) | Paul Champion (5) | Andrew Ferguson (9) | Jarrad Sim (7) | n/a |
| 2000/2001 | Andrew Langmaid, Andrew Magarey & Jeremy McCormick (5) | Tim Kaethner & Andrew Magarey (6) | Simon Zacpal (8) | Everett James (9) | n/a |
| 2001/2002 | Darren Coulter (13) | Ben Clarke & Ben Eames (4) | Chris Garth & Simon Zacpal (6) | Jarrad Sim (9) | n/a |
| 2002/2003 | Andrew Magarey (13) | Simon Zacpal (11) | Andrew Ferguson & Tyler Harman (7) | Scott Rose & Jarrad Sim (8) | Simon Leek (10) |
| 2003/2004 | Darren Coulter (10) | Andrew Magarey (10) | Paul Gallasch (10) | Michael Magarey (7) | Adam Rowe (6) |
| 2004/2005 | Sam Cheek (9) | Andrew Magarey (13) | Tim Kaethner (7) | Stuart Norman (9) | Max Cheek (9) |
| 2005/2006 | Jai Koirala & Andrew Magarey (6) | Ben Moore (8) | Tim Kaethner (7) | Jarrod McCauley (6) | Matt Fettke (6) |
| 2006/2007 | Simon Leek (6) | Andrew Magarey (7) | Tim Kaethner (8) | Anthony Fitzgerald (8) | Richard Morris (9) |
| 2007/2008 | Rahsaan Oakey (10) | Tim Kaethner (12) | Andrew Ferguson (7) | Jesse Jones (13) | n/a |
| 2008/2009 | Tim Kaethner (8) | Kai Heinsen (3) | Mike Maclean (9) | Ben Murphy (8) | n/a |
| 2009/2010 | Rahsaan Oakey (11) | Anthony Muggridge (9) | Graham Carpenter & Josh McManus (5) | David Billett (7) | n/a |
| 2010/2011 | Ben Moore (18) | Andrew Magarey (10) | Tim Kaethner (11) | Anthony Fitzgerald & Sean Price (6) | n/a |
| 2011/2012 | Brett Jorgensen (8) | Josh McManus & Matt Longhurst (6) | Ben Scott (7) | Mitchell Knuckey (7) | n/a |
| 2012/2013 | Rahsaan Oakey (7) | Matt Longhurst & Josh McManus (7) | Tim Kaethner (6) | Mitchell Knuckey (15) | n/a |
| 2013/2014 | Rahsaan Oakey (8) | Glen Dundovic & Simon Zacpal (6) | Ben Murphy (10) | Andrew Buet, David Billett & Graham Carpenter (3) | n/a |
| 2014/2015 | Ben Moore (10) | Phil Zschorn, John Zadow & Simon Zacpal (5) | Arthur Durkin (8) | Waleed Jaseem (4) | n/a |
| 2015/2016 | Tom Moore (8) | Glin Simpson (7) | Sam Fotheringham & Christian Leschke (6) | n/a | n/a |
| 2016/2017 | Glin Simpson (9) | Ben Scott (7) | Christian Leschke (11) | n/a | n/a |
| 2017/2018 | Ben Moore (8) | Glin Simpson (9) | Christian Leschke (11) | n/a | n/a |
| 2018/2019 | Rahsaan Oakey (9) | Brad Jenke (8) | Simon Zacpal (8) | Ben Scott & Tyler Clare (7) | n/a |
| 2019/2020 | Brad Jenke (6) | Ben Hawkins (7) | Christian Leschke (15) | Ben Scott (6) | Declan Quilliam (9) |
| 2020/2021 | Brad Jenke (11) | Alistair Bowman & Darren Milton (6) | Nathan Houston (9) | Simon Zacpal (11) | Maksim Maclean (7) |