Round 1
| Position | BIB | Name | Team | Echelon | Mark |
|---|---|---|---|---|---|
| 1 | 1930 | Guilherme Henriques |
AJS
|
SUB-18 | 05:29.18 (403) |
| 2 | 1832 | Mateus Jesus |
CSM
|
SUB-18 | 05:32.37 (388) |
| 3 | 1841 | Fábio Aguiar |
CSM
|
SUB-18 | 05:34.48 (378) |
| 4 | 1660 | Miguel A. Nóbrega |
CSM
|
SUB-18 | 06:36.97 (133) |
| DNF | 1539 | Guilherme Ferreira |
GDE
|
SUB-18 | x |