Girls 16/UN100m Breaststroke - Heats (Declared Winners)
Full Results
| Place | Name | YoB | Club | | Time | | R.T. | | | 50 |
| 1. | Tatiana BELONOGOFF | (01) | Guildford Ct | | 1:11.28 | | | | | 34.68 |
| 2. | Olivia HERRON | (04) | Stockport Mo | | 1:14.51 | | | | | 35.76 |
| 3. | Natasha FENTON | (02) | Co Oxford | | 1:14.77 | | | | | 35.86 |
| 4. | Eleanor COWAN | (02) | Wycombe Dist | | 1:15.59 | | | | | 35.46 |
| 5. | Michaela STEPHEN | (02) | Co Derby | | 1:15.97 | | | | | 35.97 |
| 6. | Catrin JOHN | (01) | Co Cardiff | | 1:16.24 | | | | | 36.51 |
| 7. | Sophia WILSON | (01) | Millfield | | 1:16.51 | | | | | 35.90 |
| 8. | Lana BROEKHOVEN | (03) | Plymouth Lea | | 1:16.63 | | | | | 36.24 |
| 9. | Aiyana LAWSON | (01) | Co Milton K | | 1:17.27 | | | | | 35.97 |
| 10. | Nicole CHANDLER | (02) | teamipswich | | 1:19.48 | | | | | 36.83 |
