| SCHOOL | ASSOCIATION | SEED |
| Havergal College | CISAA | 18 |
| Bayside Secondary School | COSSA | 20 |
| Cameron Heights Collegiate Institute | CWOSSA | 5 |
| Kingston Secondary School | EOSSAA | 17 |
| St. Peters Catholic Secondary School | GBSSA | 16 |
| Oakville Trafalgar High School | GHAC | 2 |
| Bishop Tonnos Catholic Secondary School | GHAC* | 1 |
| Sinclair Secondary School | LOSSA | 6 |
| Brooklin High School | LOSSA* | 9 |
| École secondaire catholique Franco-Cité | NCSSAA | 11 |
| Glebe Collegiate Institute | NCSSAA* | 15 |
| St. Joseph-Scollard Hall | NOSSA | 19 |
| St. Aloysius Gonzaga Secondary School | ROPSSAA | 3 |
| Westmount Secondary School | SOSSA | 8 |
| Chatham Kent Secondary School | SWOSSAA | 13 |
| Father John Redmond Catholic High School | TDCAA | 10 |
| Lawrence Park Collegiate Institute | TDSSAA | 12 |
| Sir Frederick Banting Secondary School | WOSSAA | 4 |
| Thornlea Secondary School | YRAA | 7 |
| St. Robert Catholic High School | YRAA* | 14 |
| * additional entry |