Round 1
| Position | BIB | Name | Team | Echelon | Mark |
|---|---|---|---|---|---|
| 1 | 153 | Iara Damas |
FCC
|
SUB-18 | 00:03:02.01 (347) |
| 2 | 257 | Carolina Quental |
AFSA
|
SUB-18 | 00:03:11.41 (266) |
| 3 | 291 | Carolina Bernardo |
JDN
|
SUB-18 | 00:03:17.65 (219) |
| 4 | 105 | Marta Braz |
JDN
|
SUB-18 | 00:03:38.05 (94) |