| SCHOOL | ASSOCIATION | SEED |
| Adam Scott Collegiate Vocational Institute | COSSA | 14 |
| Assumption College School | CWOSSA | 4 |
| Holy Cross Catholic Secondary School | EOSSAA | 8 |
| Maple Ridge Secondary School | GBSSA | 2 |
| St. Thomas More Catholic Secondary School | GHAC | 5 |
| Pickering High School | LOSSA | 7 |
| South Carleton High School | NCSSAA | 13 |
| Lo-Ellen Park Secondary School | NOSSA | 15 |
| St. Roch Catholic Secondary School | ROPSSAA | 9 |
| Castlebrooke Secondary School | ROPSSAA (Host) | 16 |
| Notre Dame College School | SOSSA | 10 |
| Holy Names Catholic High School | SWOSSAA | 3 |
| Michael Power – St. Joseph High School | TDCAA | 12 |
| Lawrence Park Collegiate Institute | TDSSAA | 6 |
| Mother Teresa Catholic Secondary School | WOSSAA | 1 |
| Westmount Collegiate Institute | YRAA | 11 |