EVENT 25 Girls Open 200m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | Jessica HALL | 10 | Grantham | 4:30.00 |
| 4 | 2 | Eleanor TWINLEY | 12 | Deepings | 4:27.47 |
| 5 | 3 | Annabel SHEPHERD | 10 | Deepings | 4:04.40 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 4 | Amy TAYLOR | 11 | Grantham | 3:47.38 |
| 2 | 5 | Lottie Ava FLATTERS | 10 | Deepings | 3:44.78 |
| 3 | 6 | Marcelina DEBICKA | 15 | Grantham | 3:28.60 |
| 4 | 7 | Nadia ROGAS | 14 | Lincoln Vulc | 3:11.00 |
| 5 | 8 | Harriet MCCORMACK | 13 | Grantham | 3:07.44 |
| 6 | 9 | Emilie WEBB | 13 | Grantham | 3:07.26 |
| 7 | 10 | Grace HOWITT | 14 | Grantham | 3:05.58 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 12 | Sophie MARSHALL | 17 | Co Lincoln P | 2:56.07 |
| 2 | 14 | Liv SPENCER | 16 | Lincoln Vulc | 2:49.30 |
| 3 | 16 | Gracie-May COLE | 15 | Co Lincoln P | 2:41.61 |
| 4 | 18 | Francesca HALLAM-STOTT | 16 | Grantham | 2:34.13 |
| 5 | 17 | Evelyn JACKSON | 14 | Lincoln Vulc | 2:34.14 |
| 6 | 15 | Corey FARLEY | 14 | Grantham | 2:43.84 |
| 7 | 13 | Megan BROWN | 13 | Grantham | 2:53.62 |
| 8 | 11 | Sophie WARD | 13 | Grantham | 3:02.15 |