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
7. Selborne College, East London
8. Hoërskool Monument, Krugersdorp
9. Hoër Landbouskool Oakdale, Riversdal
10. Boland Landbouskool, Paarl
11. Helpmekaar Kollege, Johannesburg
12. Hoër Tegniese Skool Drostdy, Worcester
13. Hoërskool Transvalia, Vanderbijlpark
14. Hilton College, Hilton
15. Wynberg Boys’ High School, Cape Town
16. Bishops Diocesan College, Cape Town
17. Jeppe High School for Boys, Johannesburg
18. Hoërskool Garsfontein (Garsies), Pretoria
19. Hoërskool Menlopark, Pretoria
20. Hoërskool Outeniqua, George
Rugby365
1. Grey College, Bloemfontein
2. Paul Roos Gymnasium, Stellenbosch
3. Glenwood High School, Durban
4. Paarl Gimnasium, Paarl
5. Paarl Boys High, Paarl
6. Hoër Landbouskool Oakdale, Riversdal
7. Hoërskool Transvalia, Vanderbijlpark
8. Hoërskool Monument, Krugersdorp
9. Helpmekaar Kollege, Johannesburg
10. Hoërskool Garsfontein (Garsies), Pretoria
11. Wynberg Boys’ High School, Cape Town
12. Hoërskool Outeniqua, George
13. Afrikaanse Hoër Seunskool (Affies), Pretoria
14. Boland Landbouskool, Paarl
15. Selborne College, East London
16. Bishops Diocesan College, Cape Town
17. Hoërskool Menlopark, Pretoria
18. Hoër Tegniese Skool Drostdy, Worcester
19. Jeppe High School for Boys, Johannesburg
20. Hoërskool Ben Vorster, Tzaneen
First XV rugby
1. Paul Roos Gymnasium, Stellenbosch
2. Glenwood High School, Durban
3. Grey College, Bloemfontein
4. Paarl Gimnasium, Paarl
5. Selborne College, East London
6. Hilton College, Hilton
7. Hoërskool Transvalia, Vanderbijlpark
8. Afrikaanse Hoër Seunskool (Affies), Pretoria
9. Paarl Boys High, Paarl
10. Boland Landbouskool, Paarl
11. Hoër Tegniese Skool Drostdy, Worcester
12. Helpmekaar Kollege, Johannesburg
13. Hoër Landbouskool Oakdale, Riversdal
14. Hoërskool Monument, Krugersdorp
15. Jeppe High School for Boys, Johannesburg
16. Hoërskool Framesby, Port Elizabeth
17. Wynberg Boys’ High School, Cape Town
18. Bishops Diocesan College, Cape Town
19. Hoërskool Ben Vorster
20. Hoërskool Garsfontein (Garsies), Pretoria