| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Viera, Isabel (10)
|
FGMACM |
1:08.14 |
1:02.31 |
-5.83 |
| 2 |
Perez, Maria C (10)
|
FGMWA |
1:06.73 |
1:03.23 |
-3.50 |
| 3 |
Seoane, Carolina A (10)
|
FGMACM |
1:06.91 |
1:05.59 |
-1.32 |
| 4 |
Wolfe, Ava R (10)
|
FGMWA |
1:05.89 |
1:06.26 |
0.37 |
| 5 |
Viera, Andrea (10)
|
FGMACM |
1:20.45 |
1:10.79 |
-9.66 |
| 6 |
Di Sarno, Naiyla F (9)
|
FGMWA |
1:17.31 |
1:12.96 |
-4.35 |
| 7 |
Karachun, Daryna (10)
|
FGYSF |
1:11.36 |
1:13.03 |
1.67 |
| 8 |
Montenegro, Makayla E (9)
|
FGMACM |
1:12.83 |
1:13.30 |
0.47 |
| 9 |
Rodriguez, Roxan (10)
|
FGMWA |
|
1:18.21 |
- |
| 10 |
Moreno, Antonia (9)
|
FGGRSC |
1:22.15 |
1:18.47 |
-3.68 |
| 11 |
Roldan, Arianna * (9)
|
FGGRSC |
1:26.54 |
1:21.71 |
-4.83 |
| 12 |
Almodovar, Lauren S (10)
|
FGGRSC |
1:28.23 |
1:22.34 |
-5.89 |
| 13 |
Chacon, Kayla M (10)
|
FGSF |
|
1:22.46 |
- |
| 14 |
Ramos Miret, Carolina (9)
|
FGMACM |
|
1:25.67 |
- |
| 15 |
Souza, Gabriela L (10)
|
FGGRSC |
1:22.93 |
1:28.20 |
5.27 |
| 16 |
Lenz Cesar, Maria Luiza B (9)
|
FGGRSC |
1:41.97 |
1:38.90 |
-3.07 |
|
Chaison, Molly A (10)
|
FGMWA |
1:23.23 |
NS |
- |