| Final | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 1 | Alice Longman | 12 | Bishop Stort | 3:08.74 |
| 2 | 2 | Gracie Comitti | 12 | Basildon Ph | 3:06.91 |
| 3 | 3 | Mabel Gigg | 12 | Co Norwich | 3:03.40 |
| 4 | 4 | Mia Lowe | 12 | Basildon Ph | 3:02.20 |
| 5 | 5 | Seren Page | 12 | teamipswich | 3:02.86 |
| 6 | 6 | Lisa Leinemann | 12 | Chelmsford | 3:06.28 |
| 7 | 7 | Rosalind Saise | 12 | teamipswich | 3:08.55 |
| 8 | 8 | Isabelle Cameron | 12 | Co Peterboro | 3:08.76 |