Different ranking sites each use their own method of compiling the rankings.
Rugby15
1. Grey College, Bloemfontein
2. Glenwood High School, Durban
3. Paul Roos Gymnasium, Stellenbosch
4. Paarl Boys High, Paarl
5. Paarl Gimnasium, Paarl
6. Afrikaanse Hoër Seunskool (Affies), Pretoria