No school was able to break into the top 20, but there was a major reshuffle among the current sides, with only three remaining in their previous position.
Waterkloof sunk four places from second to sixth after their 44-19 humiliation at the hands of Garsfontein, who jumped two places from seventh to fifth.
Bottom feeders Nelspruit and Affies rose to the No 17 and 18 respectively, while Outeniqua, Maritzburg, Paarl Gym, Paul Roos and Paarl Boys' all climbed one step up the rankings list. Kearsney are now rooted to the foot of the table.
The three unmoved teams are Grey PE, who remain at 14, Glenwood clung on to eighth position and the undefeated Grey College sit firmly at the summit. With Waterkloof's downgrade, Monument, HTS Middelburg and EG Jansen occupy the second, third and fourth places and along with Garsfontein, they complete the top five.
FNB Top 20 schools rankings
1. Grey College
3. HTS Middelburg
4. EG Jansen
9. Paarl Boys'
10. Paul Roos
12. Paarl Gym
14. Grey High