| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Grace Grindrod | 15 | Northampton | 1:35.45 |
| 2 | 2 | Emily Achurch | 15 | Northampton | 1:32.56 |
| 3 | 3 | Olivia James | 15 | Wellingboro | 1:30.76 |
| 4 | 4 | Alice Berrill | 15 | Daventry | 1:23.81 |
| 5 | 5 | Charlotte Jarman | 15 | Nene Valley | 1:26.20 |
| 6 | 6 | Annabel Coleman | 15 | Rushden | 1:32.24 |
| 7 | 7 | Rowan White | 15 | Rushden | 1:34.70 |
| 8 | 8 | Maddison Wiseman-Hay | 15 | Corby | 1:35.74 |