EVENT 302 Girls Open 100m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 1 | Dora Kingscote | 11 | Leicester Ne | 2:20.00 |
| 3 | 2 | Jessica Webb | 13 | Northampton | 2:12.23 |
| 4 | 3 | Marta Uciecha | 11 | Co Leicester | 2:06.65 |
| 5 | 4 | Emilia Durrington | 11 | Co Leicester | 1:54.85 |
| 6 | 5 | Teagan Payne | 10 | Northampton | 1:50.95 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 6 | Evie Bevan | 12 | Co Leicester | 1:44.31 |
| 2 | 7 | Isabella Porter | 12 | Co Leicester | 1:43.65 |
| 3 | 8 | Imogen Sherman | 14 | Leicester Ne | 1:42.11 |
| 4 | 9 | Joanne Mitchell | 12 | Co Leicester | 1:38.00 |
| 5 | 10 | Janie Finch | 11 | Co Leicester | 1:36.46 |
| 6 | 11 | Taryn Payne | 12 | Northampton | 1:35.90 |
| 7 | 12 | Amy McVey | 13 | Northampton | 1:33.26 |
| 8 | 13 | Eleanor Trahearn | 12 | Co Leicester | 1:32.93 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 14 | Dorothy Plumpton | 12 | Co Leicester | 1:31.18 |
| 2 | 15 | Isabella Di Pane | 13 | Northampton | 1:28.70 |
| 3 | 16 | Daisy Johnson | 16 | Leicester Ne | 1:26.81 |
| 4 | 17 | Phebe Adams | 12 | Northampton | 1:24.54 |
| 5 | 18 | Amelie Birkett | 14 | Co Leicester | 1:21.32 |
| 6 | 19 | Eleanor Hanes | 13 | Co Leicester | 1:18.98 |
| 7 | 20 | Macy Simmonds | 15 | Co Leicester | 1:16.20 |
| 8 | 21 | Ciara Mahney | 15 | Northampton | 1:16.02 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 23 | Jessica Oxley | 12 | Co Leicester | 1:15.38 |
| 2 | 25 | Ava Buxton | 14 | Calv Bing | 1:14.50 |
| 3 | 27 | Jessica Spragg | 17 | Northampton | 1:11.05 |
| 4 | 29 | Emily Mears-Bentley | 17 | Co Leicester | 1:04.65 |
| 5 | 28 | Annabel Russell | 15 | Co Leicester | 1:09.26 |
| 6 | 26 | Alyssa Lo | 13 | Co Leicester | 1:12.79 |
| 7 | 24 | Freya Wingfield-Dobbs | 15 | Co Leicester | 1:15.09 |
| 8 | 22 | Poppy Scotchbrook | 14 | Co Leicester | 1:15.73 |