| B Final | ||||||
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 1 | Eliza Humphrey | 19 | S11 | GBR - NHNA | 5:39.66 |
| 2 | 2 | Camilla Bitz Witt | 21 | S9 | DENMARK | 5:30.89 |
| 3 | 3 | Lily Rice | 20 | S8 | GBR - PEMY | 5:21.78 |
| 4 | 4 | Taylor Winnett | 25 | S10 | USA | 4:57.14 |
| 5 | 5 | Celine Vermaut | 25 | S14 | BELGIUM | 5:19.11 |
| 6 | 6 | Mira Jeanne Maack | 20 | S8 | GERMANY | 5:30.64 |
| 7 | 7 | Sabrina Duchesne | 23 | S7 | CANADA | 5:37.21 |
| 8 | 8 | Scarlett Humphrey | 19 | S11 | GBR - NHNA | 5:40.40 |