| Year | Location | # | Winner(s) | Score | |
| 1st | 1975 | Ottawa | 7 | Smilja Vujosevic | 5.5-0.5 |
| 2nd | 1978 | Victoria | 9 | Nava Shterenberg | 7.5-0.5 |
| 3rd | 1981 | Toronto | 10 | Nava Shterenberg | 7.5-1.5 |
| 4th | 1984 | Toronto | 10 | Nava Shterenberg | 8.0-1.0 |
| 5th | 1986 | Toronto | Nava Shterenberg | ||
| 6th | 1989 | Scarborough | 6 | Nava Starr | 8.5-1.5 |
| 7th | 1991 | Guelph | 17 | Nava Starr | 5.5-0.5 |
| 8th | 1995 | Montreal | 4 | Nava Starr | 5.5-0.5 |
| 9th | 1996 | Toronto | 10 | Johanne Charest | 7.5-1.5 |
| 10th | 2001 | Toronto | 18 | Nava Starr | 5.5-0.5 |
| 11th | 2004 | Toronto | 15 | Dinara Khaziyeva | 5.0-1.0 |
| 12th | 2006 | Toronto | 10 | Natalia Khoudgarian*, Dina Kagramanov | 4.5-1.5 |
| 13th | 2007 | Kitchener | 8 | Natalia Khoudgarian | 6.5-0.5 |
| 14th | 2009 | Kitchener | 7 | Dina Kagramanov | 5.5-0.5 |
| 15th | 2011 | Toronto | 16 | Natalia Khoudgarian | 5.5-0.5 |
| 16th | 2012 | Montreal | 10 | Natalia Khoudgarian | 7.5-0.5 |
| 17th | 2016 | Ottawa | 7 | Qiyu Zhou | 5.5-0.5 |
| 18th | 2017 | Montreal | 10 | Maili-Jade Ouellet | 7.0-2.0 |
| 19th | 2022 | Kingston | 14 | Maili-Jade Ouellet | 9.0-0.0 |
| 20th | 2023 | Toronto | 21 | Svitlana Demchenko | 8.0-1.0 |
| 21st | 2024 | Toronto | 49 | Maili-Jade Ouellet, Svitlana Demchenko, Yunshan Li | 7.5-1.5 |
| 22nd | 2025 | Toronto | 45 | Yunshan Li*, Svitlana Demchenko,Morgen Mills | 7.0-2.0 |
* Tie-break winner (where known)