Round 1
| Position | BIB | Name | Team | Echelon | Mark |
|---|---|---|---|---|---|
| 1 | 360 | Rafael Afonso |
GCAD
|
SUB-14 | 03:34.64 (manual) |
| 2 | 348 | David Carecho |
PCC
|
SUB-14 | 03:48.20 (manual) |
| 3 | 411 | Henrique Agostinho Pires Dias Pereira |
NJCPN
|
SUB-14 | 03:48.76 (manual) |
Round 2
| Position | BIB | Name | Team | Echelon | Mark |
|---|---|---|---|---|---|
| 1 | 372 | Júlio Dias |
PCC
|
SUB-16 | 02:46.59 (manual) |
Round 3
| Position | BIB | Name | Team | Echelon | Mark |
|---|---|---|---|---|---|
| 1 | 419 | Afonso Lindeza |
GCAD
|
SUB-18 | 03:25.83 (manual) |
Round 4
| Position | BIB | Name | Team | Echelon | Mark |
|---|---|---|---|---|---|
| 1 | 437 | Salvador Loureiro |
PCC
|
SUB-20 | 03:19.95 (manual) |