| Place | Name | YoB | Club | Time | FINA Pt | ||||
| 1. | Emily TALKES | (12) | Lincoln Vulc | 45.46 | 247 | ||||
| 2. | Molly CRAUGHAN | (12) | Lincoln Vulc | 45.92 | 240 | ||||
| 3. | Isla LORMOR | (12) | Gainsborough | 46.93 | 225 | ||||
| 4. | Lucy ABBOTT | (12) | Grantham | 47.43 | 218 | ||||
| 5. | Freya SHARPE | (12) | Lincoln Vulc | 47.53 | 216 | ||||
| 6. | Jessica HALL | (12) | Grantham | 47.56 | 216 | ||||
| 7. | Ava MALLOWS | (12) | Louth | 48.07 | 209 | ||||
| 8. | Olivia KING | (12) | Deepings | 48.09 | 209 |