| Place | Name | AaD | Club | Time | FINA Pt | 50 | ||||
| 1. | Chloe Coster | 11 | Hatfield | 1:13.45 | 332 | 35.11 | ||||
| 2. | Annabelle Brown | 11 | Stevenage | 1:15.05 | 312 | 35.92 | ||||
| 3. | Raissa Vickery | 11 | Co St Albans | 1:17.00 | 289 | 36.42 | ||||
| 4. | Thea Patel | 11 | Potters Bar | 1:17.75 | 280 | 37.20 | ||||
| 5. | Alice Longman | 11 | Bishop Stort | 1:17.76 | 280 | 36.52 | ||||
| 6. | Eva Glynn | 11 | Verulam | 1:19.81 | 259 | 37.71 | ||||
| 7. | Abbie Hackworth | 11 | Hatfield | 1:22.28 | 236 | 39.39 | ||||
| Phoebe Gill | 11 | Hatfield | DQ ST |