| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Martin, Kaya E (16)
|
FGMCDA |
1:08.87 |
1:10.42 |
1.55 |
| 2 |
Yordi, Rebecca (15)
|
FGEA |
1:13.49 |
1:14.89 |
1.40 |
| 3 |
Casadevall, Anne (16)
|
FGMCDA |
|
1:16.76 |
- |
| 4 |
Esteban, Francesca (16)
|
FGCANE |
1:14.34 |
1:18.47 |
4.13 |
| 5 |
Aguerrebere, Francesca M (15)
|
FGMS |
1:17.97 |
1:20.03 |
2.06 |
| 6 |
Sanchez, Dianni (15)
|
FGMACM |
|
1:20.17 |
- |
| 7 |
Lopez, Tatiana A (15)
|
FGCANE |
1:21.27 |
1:24.14 |
2.87 |
| 8 |
Shaleesh, Lillian M (16)
|
FGEA |
1:36.32 |
1:28.35 |
-7.97 |
| 9 |
Calero, Nicole E (16)
|
FGCANE |
1:26.49 |
1:30.68 |
4.19 |
| 10 |
Ramos, Isabella O (16)
|
FGCANE |
1:32.11 |
1:30.96 |
-1.15 |
| 11 |
Verdi, Sofi (15)
|
FGCANE |
|
1:38.49 |
- |
|
De La Vega, Carolina P (15)
|
FGCANE |
1:47.47 |
NS |
- |
|
Krasner, Alicia M (16)
|
FGNMST |
1:23.96 |
NS |
- |