| Grade Improvement | Name | Club | Grade | Previous Grade |
|---|---|---|---|---|
| 216 | Oscar Christensen | Simon Langton SB | 1456 | 1240 |
| 194 | Beni Sisupalan | Latymer School | 1747 | 1553 |
| 183 | Joshua Burnton | Latymer School | 1910 | 1727 |
| 166 | Arvi Cuni | Latymer School | 1542 | 1376 |
| 140 | David Agyemang | Dulwich College | 1739 | 1599 |
| 90 | George Allen | Simon Langton SB | 1521 | 1431 |
| 51 | Gregory Konyakhin Borrelly | Dulwich College | 1682 | 1631 |
| 50 | Mark Annear | Dulwich College | 1586 | 1536 |
| 46 | Gregor Sanfey | Latymer School | 1782 | 1736 |
| 0 | Christian Demetriou | Latymer School | 1056 | 1056 |
| -161 | Omkar Ranadive | Simon Langton SB | 1511 | 1672 |