Round 1
| Position | BIB | Name | Team | Echelon | Mark |
|---|---|---|---|---|---|
| 1 | 316 | Lara Peixoto |
ACM-A
|
SUB-18 | 00:14:02.00 |
| 2 | 328 | Eunice Berbereia |
SCA-T
|
SUB-18 | 00:16:47.00 |
| 3 | 329 | Naiara Barros |
SCA-T
|
SUB-18 | 00:18:09.00 |
| 4 | 312 | Sofia Viveiros |
ACM-A
|
SUB-18 | 00:21:51.00 |
| 5 | 314 | Indira Pacheco |
ACM-A
|
SUB-18 | 00:22:43.00 |