Premierships - B Reserve
| 1972 | Nollamara |
| 1973 | Floreat Park |
| 1974 | Scarborough |
| 1975 | Scarborough |
| 1976-1977 | No Competition |
| 1997 | Mt Lawley |
| 1998 | Balcatta Osborne Park |
| 1999 | Trinity Aquinas |
| 2000 | Dianella Morley |
| 2001 | West Coast Cowan |
| 2002 | Mt Lawley |
| 2003 | Scarborough |
| 2004 | Swan Athletic |
| 2005 | Wembley |
| 2006 | Hamersley Carine |
| 2007 | Whitford |
| 2008 | Fremantle C.B.C |
| 2009 | Wembley |
| 2010 | Collegians |
| 2011 | Kingsley |
| 2012 | Wembley |
| 2013 | North Fremantle |
| 2014 | North Fremantle |
| 2015 | Swan Athletic |
| 2016 | Wembley |
| 2017 | Kingsway |
| 2018 | Swan Athletic |
| 2019 | Curtin Uni Wesley |
| 2020 | West Coast |