Round 1
| Position | BIB | Name | Team | Echelon | Mark | 
|---|---|---|---|---|---|
| 1 | 3045 | Guilherme Carneiro |  ACFR | SUB-18 | 02:16.43 | 
| 2 | 5322 | Ivo Seixas |  ACA | SUB-18 | 02:22.62 | 
| 3 | 4668 | Rodrigo Carvalho |  SCS | SUB-18 | 02:27.66 | 
| 4 | 4919 | Filipe Fernandes |  CDCNAV | SUB-18 | 02:29.70 | 
| 5 | 3548 | Diogo Silva |  CDP | SUB-18 | 02:36.21 | 
| 6 | 4917 | Duarte Lima |  CDCNAV | SUB-18 | 02:38.37 | 
| 7 | 3380 | André Macedo |  CAF-SCF | SUB-18 | 02:38.65 | 
| 8 | 3384 | Eduardo Fonseca |  CAF-SCF | SUB-18 | 02:41.99 | 
| 9 | 5309 | Tiago Sousa |  CAF-SCF | SUB-18 | 02:57.77 | 
| 10 | 3566 | José Pedrosa |  CDP | SUB-18 | 03:10.88 | 
Round 2
| Position | BIB | Name | Team | Echelon | Mark | 
|---|---|---|---|---|---|
| 1 | 264 | Pedro Lemos |  GDR | SUB-18 | 01:56.07 | 
| 2 | 1530 | Afonso Gomes |  SCB | SUB-18 | 01:57.32 | 
| 3 | 4283 | João Silva |  MAC | SUB-18 | 01:57.61 | 
| 4 | 4480 | Nelson Moreira |  NBA | SUB-18 | 01:59.02 | 
| 5 | 252 | Duarte Vilas Boas |  CAOB-A | SUB-18 | 01:59.36 | 
| 6 | 254 | José Azevedo |  CAOB-A | SUB-18 | 02:01.21 | 
| 7 | 3311 | João Magalhães |  ARLVG | SUB-18 | 02:01.99 | 
| 8 | 4612 | Pedro Leal Ribeiro |  RUNRIVER | SUB-18 | 02:07.41 | 
| 9 | 4591 | Francisco Loureiro |  RUNRIVER | SUB-18 | 02:11.48 | 
| 10 | 4438 | Gonçalo Monteiro |  NBA | SUB-18 | 02:14.89 | 
| 11 | 3739 | Rafael Duarte |  CFOD | SUB-18 | 02:16.86 |