| B Final | ||||||
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 1 | Jacobo Garrido Brun | 22 | SM9 | SPAIN | 2:27.89 |
| 2 | 2 | Javer LabradorFernande | 23 | SM14 | SPAIN | 2:24.83 |
| 3 | 3 | Harry Stewart | 20 | SM14 | GBR - PLYW | 2:22.82 |
| 4 | 4 | Aymeric Parmentier | 31 | SM14 | BELGIUM | 2:21.08 |
| 5 | 5 | Alexander Elliot | 28 | SM10 | CANADA | 2:22.55 |
| 6 | 6 | Dylan Broom | 22 | SM14 | GBR - TDOY | 2:24.49 |
| 7 | 7 | Justin Kaps | 23 | SM10 | GERMANY | 2:25.74 |
| 8 | 8 | Zach Shattuck | 28 | SM6 | USA | 3:01.98 |