| Final | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 1 | Eleanor Craig | 15 | Watford SC | 1:13.28 |
| 2 | 2 | Ellie Holliss | 15 | Co St Albans | 1:11.72 |
| 3 | 3 | Ela Norton | 15 | Hatfield | 1:10.90 |
| 4 | 4 | Millie Fields | 15 | Bishop Stort | 1:08.13 |
| 5 | 5 | Isabella Chapman | 15 | Harpenden | 1:10.89 |
| 6 | 6 | Harriet Clements | 15 | Watford SC | 1:11.27 |
| 7 | 7 | Jessica Keogh | 15 | Hatfield | 1:13.05 |
| 8 | 8 | Helen Stafford | 15 | Co St Albans | 1:13.99 |