| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Pelayes, Mercedes (12)
|
FGSDST |
30.15 |
30.34 |
0.19 |
| 2 |
Lazzaro, Ainnara R (11)
|
FGSDST |
34.08 |
34.39 |
0.31 |
| 3 |
Mercado, Keira R (12)
|
FGEA |
36.07 |
34.42 |
-1.65 |
| 4 |
Ossa, Luciana (12)
|
FGMS |
37.80 |
35.53 |
-2.27 |
| 5 |
Mogul, Iris I (12)
|
FGCANE |
38.22 |
35.68 |
-2.54 |
| 6 |
Osman, Mariam C (12)
|
FGEA |
36.56 |
35.89 |
-0.67 |
| 7 |
Esteban, Milena E (12)
|
FGCANE |
40.45 |
37.21 |
-3.24 |
| 8 |
Membiela, Angelina S (12)
|
FGMS |
40.93 |
38.06 |
-2.87 |
| 9 |
Rodriguez, Alexa R (12)
|
FGSWAT |
|
40.47 |
- |
| 10 |
Garcia, Karla (12)
|
FGSDST |
|
43.11 |
- |
| 11 |
Ninova, Magdalena N (12)
|
FGCANE |
|
49.06 |
- |
| 12 |
Zdircu, Alessandra N (11)
|
FGMACM |
59.92 |
51.69 |
-8.23 |
| 13 |
Schoolman-Wood, Orly C (11)
|
FGCANE |
1:04.17 |
54.84 |
-9.33 |
| 14 |
Bukhryakova, Sofia (12)
|
FGASC |
|
55.44 |
- |
| 15 |
Bukhryakova, Eva (12)
|
FGASC |
|
56.19 |
- |
| 16 |
Klokova, Veronika (11)
|
FGNMST |
|
1:05.23 |
- |
|
Sime Lanang, Stacey * (11)
|
FGCANE |
51.41 |
NS |
- |