| ASSOCIATION | TEAM | SEEDING | HOMETOWN |
| COSSA 1 | St. Mary CSS | 1 | Cobourg |
| CWOSSA 1 | Centre Dufferin DHS | 2 | Shelburne |
| COSSA | Holy Cross CSS | 3 | Peterborough |
| EOSSAA 1 | Napanee DHS | 4 | Napanee |
| WOSSAA | F.E. Madill Secondary School | 5 | Wingham |
| NCSSAA | Cairine Wilson Secondary School | 6 | Ottawa |
| COSSA (Host) | Centennial Secondary School | 7 | Belleville |
| LOSSA 1 | Courtice Secondary School | 8 | Courtice |
| TDCAA | St. John Henry Newman Catholic School | 9 | Scarborough |
| ROPSSAA | Streetsville Secondary School | 10 | Mississauga |
| EOSSAA 2 | La Salle Secondary School | 11 | Kingston |
| CWOSSA 2 | Holy Trinity CHS | 12 | Simcoe |
| SWOSSAA | Lambton Central CVI | 13 | Petrolia |
| TDSSAA | Ursula Franklin Academy | 14 | Toronto |
| LOSSA 2 | Clarington Central Secondary School | 15 | Bowmanville |
| GHAC | Burlington Central High School | 16 | Burlington |