Round 1
| Position | BIB | Name | Team | Echelon | Mark |
|---|---|---|---|---|---|
| 1 | 2084 | Caetana Neves |
ACDRA
|
SUB-18 | 07:48.45 (X) |
| 2 | 971 | Luísa Conde |
THA
|
SUB-18 | 08:49.50 |
| 3 | 315 | Leonor Batata |
CPA-S
|
SUB-18 | 09:45.10 |