There are 3 grading rounds for this league.

After the grading rounds this league will be split into 3 leagues.

1. Year 9 Boys League 2 will be the top 8 teams from grading.
2. Year 9 Boys League 3 will be the teams ranked 9 - 15.
3. Year 9 Boys League 4 will be the teams ranked 16 - 22

Harbour Basketball reserves the right to grade teams.