Round 1
| Position | BIB | Name | Team | Echelon | Mark | 
|---|---|---|---|---|---|
| 1 | 1108 | Bruno Kalopa |  ASE | SUB-12 | 03:33.26 | 
| 2 | 268 | Francisco Nunes |  CLAC | SUB-14 | 03:35.00 | 
| 3 | 1122 | Gabriel Morgado |  AEAC | SUB-14 | 03:44.61 | 
| 4 | 135 | José Ferreira |  AEAC | SUB-14 | 03:57.62 | 
| 5 | 751 | Salvador Cruz |  CBA-S | SUB-12 | 04:01.04 | 
| 6 | 160 | Gabriel Bicho |  ASE | SUB-12 | 04:08.88 | 
| 7 | 294 | Pedro Mourão |  CLAC | SUB-10 | 04:11.11 | 
| 8 | 267 | Eduardo Gomes |  CLAC | SUB-14 | 04:15.25 | 
| 9 | 1046 | Francisco Gonçalves |  THA | SUB-10 | 04:16.37 | 
| 10 | 826 | Tiago Barroso |  CBA-S | SUB-10 | 04:16.38 | 
| 11 | 143 | Siraje Et Terny |  AEAC | SUB-10 | 04:20.36 | 
| 12 | 449 | David Meireles |  GAF | SUB-14 | 04:33.35 | 
| 13 | 453 | Francisco Pereira |  GAF | SUB-14 | 04:37.28 | 
| 14 | 146 | Tomás Matos |  AEAC | SUB-12 | 04:37.39 | 
| 15 | 584 | António Santos |  THA | SUB-12 | 04:55.47 | 
| DNS | 266 | Diogo Carvalho |  CLAC | SUB-10 | x | 
Round 2
| Position | BIB | Name | Team | Echelon | Mark | 
|---|---|---|---|---|---|
| 1 | 167 | Martim Almeida |  ASE | SUB-14 | 03:03.73 | 
| 2 | 1028 | Gabriel Melo |  AEAC | SUB-14 | 03:07.60 | 
| 3 | 320 | Rodrigo Lacão |  CPA-S | SUB-14 | 03:12.87 | 
| 4 | 174 | Tomás Silvério |  ASE | SUB-14 | 03:19.58 | 
| 5 | 1033 | Salvador Madeira |  CPA-S | SUB-12 | 03:27.60 | 
| 6 | 132 | Iyad Et Terny |  AEAC | SUB-14 | 03:29.43 | 
| 7 | 822 | Simão Timóteo |  CBA-S | SUB-14 | 03:36.28 | 
| 8 | 481 | David Bastos |  JDAL | SUB-12 | 03:39.58 | 
| 9 | 154 | Afonso Rosa |  ASE | SUB-12 | 03:45.01 | 
| 10 | 918 | Rafael Ribeiro |  CNRM | SUB-12 | 03:48.93 | 
| 11 | 595 | Daniel Saldanha |  THA | SUB-14 | 03:48.96 | 
| 12 | 645 | Miguel Pegas |  THA | SUB-14 | 03:50.61 | 
| 13 | 173 | Tomás Rosa |  ASE | SUB-12 | 03:51.85 | 
| 14 | 917 | Luís Gomes |  CNRM | SUB-14 | 03:55.41 | 
| 15 | 293 | Pedro Martins |  CLAC | SUB-14 | 04:10.21 | 
| 16 | 259 | Bernardo Ventura |  CLAC | SUB-14 | 04:18.87 | 
| 17 | 596 | Daniel Veras |  THA | SUB-12 | 04:21.42 |