Round 1
| Position | BIB | Name | Team | Echelon | Mark |
|---|---|---|---|---|---|
| 1 | 599 | Maria Heloísa Santos |
CDRR
|
SUB-20 | 02:52.67 (436) |
| 2 | 33 | Raquel Conceição |
AACC
|
SUB-20 | 03:01.80 (349) |