| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Montes, Isabella (11)
|
FGBMHG |
1:12.01 |
1:11.33 |
-0.68 |
| 2 |
Alcala, Karen (11)
|
FGBMHG |
1:16.17 |
1:13.73 |
-2.44 |
| 3 |
Mogul, Iris I (12)
|
FGCANE |
1:27.33 |
1:16.68 |
-10.65 |
| 4 |
Vazquez, Ayelen (12)
|
FGOSC |
1:17.33 |
1:21.43 |
4.10 |
| 5 |
Larralde, Rachel - (12)
|
FGCANE |
1:20.58 |
1:22.00 |
1.42 |
| 6 |
Funk, Abigail R (12)
|
FGEA |
1:20.97 |
1:22.55 |
1.58 |
| 7 |
Sierra-Soderman, Emma S (11)
|
FGEA |
1:32.62 |
1:30.97 |
-1.65 |
| 8 |
Sime Lanang, Stacey * (12)
|
FGCANE |
1:49.46 |
1:31.74 |
-17.72 |
|
Reno, Norah J (11)
|
FGCANE |
|
DQ |
- |
|
Pedraja, Isabella F (11)
|
FGCANE |
1:57.37 |
NS |
- |