EVENT 204 Female 200m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | Lily HOGAN | 10 | Co Leeds | 4:09.98 |
| 4 | 3 | Holly BROWN | 10 | Co Leeds | 3:50.11 |
| 5 | 2 | Heidi EGGLESTON | 11 | Borocuda T | 3:55.00 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 4 | Emily Rose GARRICK | 9 | Co Leeds | 3:50.00 |
| 1 | 6 | Onadi GUNARATHNE | 10 | Co Leeds | 3:43.00 |
| 2 | 8 | Elizabeth ROTHWELL | 11 | Co Leeds | 3:32.40 |
| 3 | 10 | Matilda PENNELLS | 10 | Co Leeds | 3:21.92 |
| 4 | 12 | Ayla CARRY | 12 | Co Leeds | 3:09.70 |
| 5 | 11 | Martha NEWMAN | 10 | Co Leeds | 3:13.80 |
| 6 | 9 | Sophie LEWIS | 11 | Co Leeds | 3:25.00 |
| 7 | 7 | Nell HARGREAVES | 11 | Co Leeds | 3:38.60 |
| 8 | 5 | Gracie HART | 10 | Co Leeds | 3:48.99 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 14 | Keira ENIKEEVA | 11 | Camden Swiss | 3:07.90 |
| 1 | 16 | Evie MORAN | 12 | Co Leeds | 3:04.82 |
| 2 | 18 | Madeleine FLAHERTY | 12 | Co Leeds | 2:56.70 |
| 3 | 20 | Jessica COLLEY | 12 | Co Leeds | 2:45.30 |
| 4 | 22 | Evie THORPE | 13 | Co Leeds | 2:37.70 |
| 5 | 21 | Rosie GRAYSON | 13 | Chester Le S | 2:39.60 |
| 6 | 19 | Jaclyn LIAW | 14 | Camden Swiss | 2:48.50 |
| 7 | 17 | Lily VEEVERS | 14 | Co Leeds | 2:58.11 |
| 8 | 15 | Livia STACEY | 14 | Co Leeds | 3:06.76 |
| 9 | 13 | Yan CHEUNG | 12 | Co Leeds | 3:08.28 |