Round 1
| Position | BIB | Name | Team | Echelon | Mark |
|---|---|---|---|---|---|
| 1 | 7833 | Sofia Souto |
CYCL
|
SUB-18 | 03:16.33 |
| 2 | 7291 | Diana Alves |
ADB
|
SUB-18 | 03:37.25 |
| 3 | 7747 | Beatriz Freitas |
ACDAV
|
SUB-18 | 03:39.40 |
| 4 | 7562 | Luana Correia |
GJVP
|
SUB-18 | 03:43.76 |
| 5 | 7862 | Eva Cruz |
GDC-VC
|
SUB-18 | 04:10.19 |
| DNS | 7313 | Carolina Koprowski |
CYCL
|
SUB-18 | x |
| DNS | 7958 | Mariana Beja |
CYCL
|
SUB-18 | x |