| 1 | Desborough College Period 202425 | 1.51 | Academy · Day · 6th | Maidenhead, South East | — |
| 2 | The Skinners' School Period 202425 | 0.66 | Grammar · Day · 6th | Tunbridge Wells, South East | Good |
| 3 | Northfleet Technology College Period 202425 | 0.51 | State · Day · 6th | Gravesend, South East | Good |
| 4 | The Royal Grammar School, High Wycombe Period 202324 | 0.50 | Grammar · Boarding · 6th | High Wycombe, South East | Good |
| 5 | St Birinus School Period 202324 | 0.43 | Academy · Day · 6th | Didcot, South East | — |
| 6 | Reading School Period 202324 | 0.39 | Grammar · Boarding · 6th | Reading, South East | Outstanding |
| 7 | The Howard School Period 202324 | 0.36 | Academy · Day · 6th | Gillingham, South East | — |
| 8 | Dr Challoner's Grammar School Period 202425 | 0.36 | Grammar · Day · 6th | Amersham, South East | Outstanding |
| 9 | Sir Joseph Williamson's Mathematical School Period 202324 | 0.34 | Grammar · Day · 6th | Rochester, South East | Outstanding |
| 10 | Tunbridge Wells Grammar School for Boys Period 202324 | 0.33 | Grammar · Day · 6th | Tunbridge Wells, South East | — |
| 11 | Leigh Academy Tonbridge Period 202425 | 0.32 | Academy · Day · 6th | Tonbridge, South East | Good |
| 12 | Wilmington Grammar School for Boys Period 202324 | 0.30 | Grammar · Day · 6th | Dartford, South East | — |
| 13 | The Windsor Boys' School Period 202425 | 0.29 | Academy · Day · 6th | Windsor, South East | — |
| 14 | Holcombe Grammar School Period 202324 | 0.24 | Grammar · Day · 6th | Chatham, South East | — |
| 15 | Borden Grammar School Period 202425 | 0.21 | Grammar · Day · 6th | Sittingbourne, South East | — |
| 16 | John Hampden Grammar School Period 202324 | 0.20 | Grammar · Day · 6th | High Wycombe, South East | Outstanding |
| 17 | The Harvey Grammar School Period 202324 | 0.20 | Grammar · Day · 6th | Folkestone, South East | — |
| 18 | Gravesend Grammar School Period 202425 | 0.18 | Grammar · Day · 6th | Gravesend, South East | — |
| 19 | Aylesbury Grammar School Period 202324 | 0.16 | Grammar · Day · 6th | Aylesbury, South East | Outstanding |
| 20 | Oakwood Park Grammar School Period 202425 | 0.14 | Grammar · Day · 6th | Maidstone, South East | — |
| 21 | The Judd School Period 202425 | 0.13 | Grammar · Day · 6th | Tonbridge, South East | — |
| 22 | The Forest School Period 202425 | 0.11 | Academy · Day · 6th | Wokingham, South East | Good |
| 23 | Maidstone Grammar School Period 202324 | 0.10 | Grammar · Day · 6th | Maidstone, South East | — |
| 24 | Glyn School Period 202324 | 0.09 | Academy · Day · 6th | Epsom, South East | Outstanding |
| 25 | Dartford Grammar School Period 202324 | 0.09 | Grammar · Day · 6th | Dartford, South East | Outstanding |