| 1 | Kendrick School Period 202425 | 8.29 | Grammar · Day · 6th | Reading, South East | Outstanding |
| 2 | Reading School Period 202425 | 8.25 | Grammar · Boarding · 6th | Reading, South East | Outstanding |
| 3 | Dartford Grammar School Period 202425 | 7.99 | Grammar · Day · 6th | Dartford, South East | Outstanding |
| 4 | Upton Court Grammar School Period 202425 | 7.81 | Grammar · Day · 6th | Slough, South East | Outstanding |
| 5 | Dr Challoner's High School Period 202425 | 7.74 | Grammar · Day · 6th | Amersham, South East | Outstanding |
| 6 | Tonbridge Grammar School Period 202425 | 7.66 | Grammar · Day · 6th | Tonbridge, South East | Outstanding |
| 7 | The Judd School Period 202425 | 7.37 | Grammar · Day · 6th | Tonbridge, South East | — |
| 8 | St Bernard's Catholic Grammar School Period 202425 | 7.35 | Grammar · Day · 6th | Slough, South East | Outstanding |
| 9 | Herschel Grammar School Period 202425 | 7.25 | Grammar · Day · 6th | Slough, South East | Outstanding |
| 10 | Chesham Grammar School Period 202425 | 7.25 | Grammar · Day · 6th | Chesham, South East | — |
| 11 | Dartford Grammar School for Girls Period 202425 | 7.23 | Grammar · Day · 6th | Dartford, South East | — |
| 12 | Tunbridge Wells Girls' Grammar School Period 202425 | 7.22 | Grammar · Day · 6th | Tunbridge Wells, South East | Outstanding |
| 13 | The Royal Grammar School, High Wycombe Period 202425 | 7.18 | Grammar · Boarding · 6th | High Wycombe, South East | Good |
| 14 | Wycombe High School Period 202425 | 7.16 | Grammar · Day · 6th | High Wycombe, South East | Outstanding |
| 15 | Langley Grammar School Period 202425 | 7.13 | Grammar · Day · 6th | Langley, South East | Outstanding |
| 16 | Dr Challoner's Grammar School Period 202425 | 7.12 | Grammar · Day · 6th | Amersham, South East | Outstanding |
| 17 | Beaconsfield High School Period 202425 | 7.11 | Grammar · Day · 6th | Beaconsfield, South East | Outstanding |
| 18 | Aylesbury Grammar School Period 202425 | 6.92 | Grammar · Day · 6th | Aylesbury, South East | Outstanding |
| 19 | Sir William Borlase's Grammar School Period 202425 | 6.87 | Grammar · Day · 6th | Marlow, South East | Outstanding |
| 20 | Aylesbury High School Period 202425 | 6.84 | Grammar · Day · 6th | Aylesbury, South East | Outstanding |
| 21 | Invicta Grammar School Period 202425 | 6.83 | Grammar · Day · 6th | Maidstone, South East | Outstanding |
| 22 | Sir Joseph Williamson's Mathematical School Period 202425 | 6.82 | Grammar · Day · 6th | Rochester, South East | Outstanding |
| 23 | The Skinners' School Period 202425 | 6.76 | Grammar · Day · 6th | Tunbridge Wells, South East | Good |
| 24 | Sir Henry Floyd Grammar School Period 202425 | 6.74 | Grammar · Day · 6th | Aylesbury, South East | Outstanding |
| 25 | Highworth Grammar School Period 202425 | 6.70 | Grammar · Day · 6th | Ashford, South East | — |