| B Final | ||||||
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 1 | Liesette Bruinsma | 24 | SM11 | NETHERLANDS | 2:52.46 |
| 2 | 2 | Beatriz LeridaMaldonad | 19 | SM9 | SPAIN | 2:47.49 |
| 3 | 3 | Pernilla Lindberg | 30 | SM14 | SWEDEN | 2:38.32 |
| 4 | 4 | Poppy Maskill | 19 | SM14 | GBR - ALSN | 2:33.10 |
| 5 | 5 | Louise Fiddes | 23 | SM14 | GBR - HATT | 2:33.34 |
| 6 | 6 | Lisa Kruger | 24 | SM10 | NETHERLANDS | 2:38.81 |
| 7 | 7 | Nahia Zudaire Borrezo | 20 | SM8 | SPAIN | 2:58.95 |
| 8 | 8 | Scarlett Humphrey | 19 | SM11 | GBR - NHNA | 2:52.51 |