Round 1
| Position | BIB | Name | Team | Echelon | Mark |
|---|---|---|---|---|---|
| 1 | 258 | Gonçalo Alegria |
SCP
|
SUB-20 | 02:50.04 (765) |
| 2 | 319 | Guilherme Tavares |
SLB
|
SUB-20 | 02:50.59 (759) |
| 3 | 130 | Bran Nuñez |
ESP
|
S20 | 02:56.44 (700) |
| 4 | 310 | Bernardo Cunha |
SLB
|
SUB-20 | 02:58.17 (682) |
| 5 | 203 | José Passo |
LAVRA
|
SUB-20 | 03:00.53 (659) |
| 6 | 251 | Celio Quaresma |
SCP
|
SUB-20 | 03:03.48 (631) |
| 7 | 184 | João Martins |
JV
|
SUB-20 | 03:44.05 (298) |