Round 1
| Position | BIB | Name | Team | Echelon | Mark |
|---|---|---|---|---|---|
| 1 | 588 | Luiz Viriato Anjos |
A20KM
|
SUB-18 | 04:27.01 |
| 2 | 517 | Gabriel Melo |
AEAC
|
SUB-16 | 04:36.15 |
| 3 | 93 | Bernardo Pereira |
A20KM
|
SUB-18 | 04:37.34 (X) |
| DNF | 206 | Bernardo Barroso |
CBA-S
|
SUB-18 | x |