EVENT 201 Female 200m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 4 | Libby FLITTON | 11 | Dunstable | 3:12.51 |
| 2 | 8 | Annabella COJEEN | 13 | Aylesbury | 2:58.87 |
| 3 | 10 | Lara ROBSON | 13 | Co Milton K | 2:57.24 |
| 4 | 12 | Nina MORII | 13 | Camden Swiss | 2:48.57 |
| 5 | 11 | Evie ARMSTRONG | 12 | Dunstable | 2:50.90 |
| 6 | 9 | Ayla THIEDE | 12 | Camden Swiss | 2:57.50 |
| 7 | 6 | Alice DALY | 14 | Amersham | 3:09.72 |
| 8 | 2 | Isabella BATER | 12 | Amersham | |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 14 | Jemima DA SILVA | 13 | Camden Swiss | 2:47.80 |
| 2 | 16 | Grace ARMSTRONG | 15 | Dunstable | 2:46.72 |
| 3 | 18 | Keira OSORIO | 15 | Camden Swiss | 2:44.90 |
| 4 | 21 | Eloise COLE | 16 | Bedford SS | 2:24.50 |
| 5 | 19 | Maya AL FAISAL | 15 | Camden Swiss | 2:41.25 |
| 6 | 17 | Eva-May BOWIE | 13 | Bedford SS | 2:45.32 |
| 7 | 15 | Bryony MATHIAS | 17 | Dunstable | 2:47.47 |
| 8 | 13 | Linnoa HURCOMBE | 13 | Camden Swiss | 2:48.07 |