| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Caracciolo, Sophia L (11)
|
FGNMST |
36.28 |
36.42 |
0.14 |
| 2 |
Barrios, Kaitlyn (11)
|
FGSOFL |
38.50 |
39.80 |
1.30 |
| 3 |
Natino, Judith-Alison P (11)
|
FGSOFL |
39.97 |
40.82 |
0.85 |
| 4 |
Caswell, Emma R (12)
|
FGDRSC |
49.18 |
41.96 |
-7.22 |
| 5 |
Schlipman, Claudine * (11)
|
FGCANE |
47.21 |
43.07 |
-4.14 |
| 6 |
Thakur, Ahana (12)
|
FGSOFL |
45.29 |
44.15 |
-1.14 |
| 7 |
Ponce, Massima (12)
|
FGFFSC |
|
45.68 |
- |
| 8 |
Behar, Maya (12)
|
FGFFSC |
53.13 |
48.24 |
-4.89 |
| 9 |
Yang, Elizabeth S (11)
|
FGCANE |
|
49.55 |
- |
| 10 |
Aldabe, Ines M (12)
|
FGMSA |
|
50.03 |
- |
| 11 |
Lima, Erica M (11)
|
FGNMST |
|
52.15 |
- |
| 12 |
Custodio, Priscila D (11)
|
FGMACM |
54.23 |
52.35 |
-1.88 |
| 13 |
Dragoni, Nicole N (11)
|
FGFFSC |
|
52.66 |
- |
| 14 |
Lima, Natalia M (12)
|
FGNMST |
|
53.53 |
- |
| 15 |
Sousa, Sarah (12)
|
FGNMST |
|
54.27 |
- |
| 16 |
Andapally, Anisha (11)
|
FGSOFL |
53.27 |
56.82 |
3.55 |
| 17 |
Dubois, Yannick D (11)
|
FGFFSC |
|
58.80 |
- |
| 18 |
Cartas, Melanie (12)
|
FGFFSC |
|
59.06 |
- |
| 19 |
Navarro, Sophia (11)
|
FGSGST |
|
1:04.51 |
- |
|
Burchell, Jaiya S (12)
|
FGNMST |
1:12.85 |
NS |
- |
|
Gelin, Mia M (11)
|
FGMSA |
43.26 |
NS |
- |
|
Pottigari, Saanvi R (12)
|
FGSOFL |
46.10 |
NS |
- |
|
Balzano, Luna R (12)
|
FGMSA |
40.45 |
NS |
- |
|
Cavalieri, Valeria A (12)
|
FGCANE |
52.03 |
NS |
- |