EVENT 106 Female 100m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | YoB | Club | Time |
| 1 | 1 | Molly BEALE | 11 | N Dorset SC | 1:45.66 |
| 2 | 3 | Lauren STRUCK | 12 | S Bournem'th | 1:32.22 |
| 3 | 5 | Lydia RANDELL | 11 | Seagulls SC | 1:31.03 |
| 4 | 4 | Esme LEIGHTON | 13 | S Bournem'th | 1:31.10 |
| 5 | 2 | Elaina HARRIS | 13 | Weymouth | 1:41.86 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | YoB | Club | Time |
| 1 | 7 | Isabelle MACRAE | 11 | S Bournem'th | 1:27.73 |
| 2 | 9 | Amelia SCOTT | 10 | S Bournem'th | 1:17.83 |
| 3 | 11 | Antonia BRIGHT | 07 | N Dorset SC | 1:15.40 |
| 4 | 10 | Eliza LIVELY | 11 | Weymouth | 1:17.22 |
| 5 | 8 | Annabella HINE | 12 | West Dorset | 1:20.80 |
| 6 | 6 | Aadya SINGH | 10 | S Bournem'th | 1:29.91 |