| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 1 | Jessica EVERETT | 16 | Gwich Royals | 1:13.93 |
| 1 | 2 | Evie POTTICARY | 16 | Thanet Swim | 1:11.16 |
| 2 | 3 | Ellie LEWIS | 16 | Orpington OJ | 1:09.56 |
| 3 | 4 | Lilia FORNASIER | 16 | RTW Monson | 1:07.86 |
| 4 | 5 | I NIGHTINGALE-ELLIS | 16 | RTW Monson | 1:03.96 |
| 5 | 6 | Emilia OLIVER | 16 | RTW Monson | 1:06.06 |
| 6 | 7 | Ivy HAGGERTY | 16 | Thanet Swim | 1:09.23 |
| 7 | 8 | Florence IDOWU | 16 | Bexley | 1:10.19 |
| 8 | 9 | Ruby WALLER | 16 | Sevenoaks | 1:13.02 |
| 9 | 10 | Katharine IRWIN | 16 | Maidstone SC | 1:14.04 |