| Mon14 Jun2021 |
|  | 16:10 | Tennis U13A, U13B, U13C, U13D | v The Harrodian School | A |
| |
| Tue15 Jun2021 |
| | 13:30 | Tennis U12A | v Maida Vale School | H |
| | 14:00 | Tennis U14A | v Maida Vale School | H |
| | 16:10 | Tennis U12A, U12B, U12C, U12D | v The Harrodian School | A |
| |
| Wed16 Jun2021 |
| | 14:30 | Tennis Mixed U18A, U18B, U18C | v The Harrodian School | A |
| |
| Thu17 Jun2021 |
|  | 14:00 | Cricket U15A, U15B | v Ibstock Place School | A |
| | 14:15 | Cricket U15B, U15C, U15C, U15D | v Ibstock Place School | A |
| |
| Fri18 Jun2021 |
|  | 13:30 | Athletics Mixed U12A | v Latymer Upper School | A |
| | 14:00 | Cricket U14A, U14B | v Ibstock Place School | A |
| | 14:15 | Cricket U14B, U14B, U14C, U14C | v Ibstock Place School | A |
| | 14:30 | Cricket U14D | v Ibstock Place School | tbc |
| |
| Sat19 Jun2021 |
|  | | Rowing | Marlow Regatta J16 - J18 | Dorney Lake |
| |
| Sun20 Jun2021 |
| | | Rowing | Marlow Regatta J14 & J15 | Dorney Lake |
| |
| Tue22 Jun2021 |
| | 14:00 | Cricket U12A, U12B, U12C | v Maida Vale School | H |
| |
| Sun27 Jun2021 |
| | | Rowing | KHSBC Summer House Regatta | Quintin BC |
| |
| Mon28 Jun2021 |
| | 14:00 | Cricket U13A | v Ibstock Place School | A |
| | 14:15 | Cricket U13B, U13B, U13C | v Ibstock Place School | A |
| | 14:15 | Cricket U13C | v Ibstock Place School | tbc |
| | 14:30 | Cricket U13A | v Wetherby Senior School | A |
| |
| Tue29 Jun2021 |
| | 14:00 | Cricket U12A, U12B | v Ibstock Place School | A |
| | 14:15 | Cricket U12B, U12C, U12C, U12D, U12D | v Ibstock Place School | A |
| |
| Thu1 Jul2021 |
| | 14:30 | Cricket U15A, U15B, U15C | v The Harrodian School | A |
| | 14:30 | Tennis U15A, U15B, U15C | v The Harrodian School | A |
| |
| Fri2 Jul2021 |
| | | Rowing | Henley Women's Regatta | Henley Rowing Club |
| | 14:30 | Cricket U14A, U14B, U14C | v The Harrodian School | A |
| |
| Sat3 Jul2021 |
| | | Rowing | Chiswick Regatta | Quintin BC |
| |
| Mon5 Jul2021 |
| | 16:10 | Cricket U13A, U13B, U13C | v The Harrodian School | A |
| |
| Tue6 Jul2021 |
| | 16:10 | Cricket U12A, U12B, U12C | v The Harrodian School | A |
