Round 1
| Position | BIB | Name | Team | Echelon | Mark |
|---|---|---|---|---|---|
| 1 | 4958 | Rodrigo Alves |
ACFR
|
SUB-18 | 01:00.58 |
| 2 | 3115 | João Torres |
ACPV
|
SUB-18 | 01:03.82 |
| 3 | 5003 | António Sousa |
ACFR
|
SUB-18 | 01:08.82 |
| 4 | 5067 | João Carlos Costa |
CDCNAV
|
SUB-18 | 01:09.13 |
Round 2
| Position | BIB | Name | Team | Echelon | Mark |
|---|---|---|---|---|---|
| 1 | 4928 | Guilherme Carneiro |
ACFR
|
SUB-18 | 58.80 |
| 2 | 4919 | Rodolfo Rangel |
ACFR
|
SUB-18 | 01:00.90 |
| 3 | 3764 | Rafael Pinto |
CFOD
|
SUB-18 | 01:01.54 |
| 4 | 4709 | Rodrigo Carvalho |
SCS
|
SUB-18 | 01:02.31 |
| 5 | 5340 | Francisco Silva |
ACPV
|
SUB-18 | 01:08.55 |