Girls 16/UN 100m Backstroke - Heats (Declared Winners)
Full Results
| Place | Name | YoB | Club | | Time | | R.T. | | | 50 |
| 1. | Millie SANSOME | (01) | Wycombe Dist | | 1:04.28 | | | | | 31.37 |
| 2. | Alice GOULDBY | (01) | Millfield | | 1:05.57 | | | | | 32.07 |
| 3. | Honey OSRIN | (03) | Plymouth Lea | | 1:06.55 | | | | | 32.43 |
| 4. | Lottie WYNNE-JONES | (03) | Co Milton K | | 1:08.15 | | | | | No Split |
| 5. | Emily FORD | (02) | Co Oxford | | 1:08.80 | | | | | 33.44 |
| 6. | Keira HENLEY | (01) | Stockport Mo | | 1:09.58 | | | | | 33.73 |
| 7. | Daisy CORBETT | (01) | Guildford Ct | | 1:11.33 | | | | | 34.59 |
| 8. | Jessica RUTTER | (02) | Co Cardiff | | 1:12.26 | | | | | 34.82 |
| 9. | Phoebe HAYDEN | (01) | teamipswich | | 1:12.60 | | | | | 34.99 |
| 10. | Sian HEAP | (01) | Co Derby | | 1:13.05 | | | | | 35.72 |
