Girls 15/UN100m Breaststroke - Heats (Declared Winners)
Full Results
| Place | Name | YoB | Club | | Time | | R.T. | | | 50 |
| 1. | Charlotte HOLMES | (99) | Co Sheffield | | 1:15.70 | | + 0.85 | | | 36.16 |
| 2. | Chloe Edrich | (99) | TauntonDeane | | 1:15.94 | | + 0.76 | | | 35.67 |
| 3. | Lily Seaward | (98) | Millfield | | 1:16.25 | | + 0.75 | | | 35.88 |
| 4. | Summer UPTON | (99) | Woking | | 1:19.93 | | + 0.85 | | | 36.36 |
| 5. | Rosie Foden | (99) | Northampton | | 1:21.33 | | + 0.82 | | | 38.40 |
| 6. | Ellie HUTCHINGS | (00) | Ellesmere Co | | 1:21.43 | | + 0.89 | | | 39.16 |
| 7. | Dolly TRIGG | (98) | teamipswich | | 1:21.85 | | + 0.85 | | | 38.67 |
| 8. | Anna-Mariya Dimitrova | (98) | Ealing | | 1:22.12 | | + 0.78 | | | 38.52 |
| 9. | Rebecca Winn | (00) | Co Coventry | | 1:23.12 | | + 0.83 | | | 40.10 |
| 10. | Cailtin Xerri | (99) | Co Cardiff | | 1:24.33 | | + 0.83 | | | 39.60 |
