Round 1
| Position | BIB | Name | Team | Echelon | Mark |
|---|---|---|---|---|---|
| 1 | 331 | Tomás Rosário |
CAS
|
SUB-18 |
04:42.68
|
| DNS | 340 | Rui Pedro Cabral |
CMP
|
SUB-20 | DNS (X) |