EVENT 105 Girls 14/15 Yrs 100m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 1 | 1 | Menna Walmsley | 04 | Bedfordshire | 1:08.09 |
| 2 | 3 | Caitlin Gulliver | 04 | Wiltshire | 1:06.71 |
| 3 | 5 | Jessica Shaw | 05 | Cambs | 1:06.14 |
| 4 | 7 | Amelia Stone | 04 | Sussex | 1:05.62 |
| 5 | 6 | Ruby Dagless | 05 | Norfolk | 1:05.83 |
| 6 | 4 | Lauren Knight | 04 | Warwicks | 1:06.30 |
| 7 | 2 | Isabelle Leigh | 04 | Cornwall | 1:07.44 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 0 | 9 | Jess Prokas | 05 | Cumbria | 1:05.30 |
| 1 | 11 | Emily Mears-Bentley | 04 | Leics | 1:05.26 |
| 2 | 13 | Catherine Eland | 04 | Dorset | 1:04.98 |
| 3 | 15 | Jessica Mellor | 05 | Staffs | 1:04.41 |
| 4 | 17 | Laura Dickinson | 05 | Lincolnshire | 1:02.22 |
| 5 | 16 | Jessica Dickinson | 05 | Swim Wales W | 1:04.34 |
| 6 | 14 | Valeria Giron | 05 | SE Herts | 1:04.81 |
| 7 | 12 | Millie Checkley | 04 | Worcs | 1:04.99 |
| 8 | 10 | Sophie Hawkes | 04 | Hampshire | 1:05.26 |
| 9 | 8 | Mimi Lloyd Simms | 04 | Gloucs | 1:05.37 |