Round 1
| Position | BIB | Name | Team | Echelon | Mark |
|---|---|---|---|---|---|
| 1 | 7830 | Renata Castilho |
CYCL
|
SUB-16 | 03:23.89 |
| 2 | 7912 | Mariana Manso |
GJVP
|
SUB-16 | 03:52.40 |
| 3 | 7787 | Leonor Ferreira |
CAM-VC
|
SUB-16 | 03:53.31 |