| Final | ||||||
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 0 | 1 | Ella-Louise DOYLE | 17 | Gwich Royals | 1:21.94 | |
| 1 | 2 | Erin O'HARA | 17 | Saxon Crown | 1:20.76 | |
| 2 | 3 | Samantha JACKSON | 18 | Orpington OJ | 1:19.69 | |
| 3 | 4 | Holly GEAKE | 18 | Tonbridge | 1:17.79 | |
| 4 | 5 | Amber PIPER | 17 | Thanet Swim | 1:16.08 | |
| 5 | 6 | Hannah LEWIS | 17 | Bromley | 1:17.74 | |
| 6 | 7 | Molly LOWN | 18 | Dover Life | 1:19.66 | |
| 7 | 8 | Brock WHISTON | 27 | SB9 | Beckenham | 1:19.99 |
| 8 | 9 | Imogen STODDART | 18 | Sevenoaks | 1:20.91 | |
| 9 | 10 | Grace CUMMINGS | 17 | Thanet Swim | 1:23.00 | |