Round 1
| Position | BIB | Name | Team | Echelon | Mark |
|---|---|---|---|---|---|
| 1 | 946 | Maria Luís Silva |
SCE
|
SUB-18 | 02:54.24 (421) |
| 2 | 883 | Angelina Valente |
SCBM
|
SUB-18 | 03:22.40 (185) |
| 3 | 22 | Bárbara Pinho |
ACDCVC
|
SUB-18 | 03:32.63 (122) |