| Final | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 1 | Gretel Goodgame | 14 | Co Oxford | 1:01.38 |
| 1 | 2 | Astrid Hannah | 14 | Millfield | 1:01.03 |
| 2 | 3 | Ellie Holliss | 14 | Co St Albans | 1:00.98 |
| 3 | 4 | Issey-May Reeves | 14 | Co Sheffield | 1:00.91 |
| 4 | 5 | Emily Iley | 14 | Bo Waltham F | 59.86 |
| 5 | 6 | Meadow Dronsfield | 14 | Co Manch Aq | 1:00.66 |
| 6 | 7 | Izzy Winter | 14 | Newcastle | 1:00.92 |
| 7 | 8 | Madeleine Squires | 14 | Co Leicester | 1:01.01 |
| 8 | 9 | Harriet Rogers | 14 | Darlington | 1:01.24 |
| 9 | 10 | Isobel Benster | 14 | Maidenhead | 1:01.43 |