Grey College have risen to second place in the FNB Top 20 rankings following their 40-10 victory over Glenwood on Saturday.
Grey's promotion sees Paul Roos, Paarl Gym, Affies and Monument all drop down one ranking spot, with Monnas sitting outside the top five now.
In the only other change to the top half, Selborne trade places with HTS Middelburg in seventh position.
Lower down, SACS and Grey High swap around in 13th and 14th position respectively; Maritzburg are relegated two spots from 15th to 17th following a 17-12 defeat against Michaelhouse and Potchefstroom Gim's 21-10 triumph over Ben Vorster earns them promotion off the foot of the standings to 18th place.
Waterkloof lose their Top 20 status and are replaced by Diamantveld on the list.
FNB Top 20 rankings
1. Paarl Boys'
2. Grey College
3. Paul Roos
4. Paarl Gym
5. Affies
6. Monument
7. Selborne
8. HTS Middelburg
9. Eldoraigne
10. Oakdale
11. EG Jansen
12. Nelspruit
13. SACS
14. Grey High
15. Boland Landbou
16. Outeniqua
17. Maritzburg
18. Potchefstroom Gim
19. Diamantveld
20. Garsfontein
Source: Rugby365.com
Over at SASchoolSports.co.za, there's only been one change in the top half of the standings: Grey College's victory sees them oust Grey High in eighth position.
Following their comfortable 37-23 victory over Die Brandwag, Outeniqua rise five places higher, from 17th to 12th; Oakdale's 25-19 defeat to pace-setters Paarl Boys' earns them relegation from 12th to 14th spot; while Glenwood slip to 19th.
Additionally, Boland Landbou and Potchefstroom Gim come onto the list as replacements for AHS Kroonstad and Bishops, who both lost at the weekend.
SA School Sports Top 20
1. Paarl Boys'
2. Affies
3. Paarl Gym
4. Michaelhouse
5. Monument
6. Paul Roos
7. Selborne
8. Grey College
9. EG Jansen
10. Grey High
11. Eldoraigne
12. Outeniqua
13. Stellenberg
14. HTS Middelburg
15. St Benedict's
16. Oakdale
17. Boland Landbou
18. Noord-Kaap
19. Glenwood
20. Potchefstroom Gim
Photo: Grey College