Round 1
| Position | BIB | Name | Team | Echelon | Mark |
|---|---|---|---|---|---|
| 1 | 1832 | Mateus Jesus |
CSM
|
SUB-18 | 50.72 |
| 2 | 1930 | Guilherme Henriques |
AJS
|
SUB-18 | 53.41 |
| 3 | 3094 | Domenic Rey |
GDE
|
SUB-18 | 57.82 |
| 4 | 2061 | Rodrigo Teixeira |
ADRAP
|
SUB-18 | 58.96 |
| 5 | 2071 | Carlos Abreu |
AJS
|
SUB-18 | 01:00.89 |