Round 1
| Position | BIB | Name | Team | Echelon | Mark |
|---|---|---|---|---|---|
| 1 | 4199 | Diana Fernandes |
UDV
|
SUB-20 |
18:17.30
|
| 2 | 3833 | Beatriz Rocha |
MAC
|
SUB-20 |
19:36.50
|
| 3 | 8510 | Catarina Arieira |
CAM-VC
|
SUB-20 |
24:41.55
|