| SCHOOL | ASSOCIATION | SEED |
| St. Peter Secondary School | COSSA | 1 |
| Neil McNeil High School | TDCAA | 2 |
| Brooklin High School | LOSSA | 3 |
| Christ the King Catholic Secondary School | GHAC | 4 |
| Malvern Collegiate Institute | TDSSAA | 5 |
| Assumption College | CWOSSA | 6 |
| St. Martin Catholic Secondary School | ROPSSAA | 7 |
| Owen Sound District Secondary School | CWOSSA | 8 |
| Bowmanville High School | LOSSA | 9 |
| Bill Crothers Secondary School | YRAA | 10 |
| Sacred Heart | NCSSAA | 11 |
| Bracebridge & Muskoka Lakes Secondary School | GBSSA | 12 |