Round 1
| Position | BIB | Name | Team | Echelon | Mark |
|---|---|---|---|---|---|
| 1 | 1752 | Catarina Cunha Rêgo |
QFC
|
SUB-20 | 05:30.66 |
| 2 | 1980 | Ana Cruz |
GRQL
|
SUB-20 | 05:33.50 |
| 3 | 1742 | Sofia Meira |
SLA
|
SUB-20 | 05:37.71 |