Round 1
| Position | BIB | Name | Team | Echelon | Mark |
|---|---|---|---|---|---|
| 1 | 300 | Maria Silva |
CASHM
|
SUB-12 | 03:51.80 |
| 2 | 1160 | Carolina Assunção |
GJPB
|
SUB-12 | 03:52.28 |
| 3 | 410 | Vitória Dias |
CSJSC
|
SUB-12 | 03:57.24 |
| 4 | 523 | Leila Rocha |
GRECAS
|
SUB-12 | 04:17.56 |