| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Kline, Anna R (10)
|
FGMSA |
41.89 |
40.59 |
-1.30 |
| 2 |
Jorge, Sofia (8)
|
FGMACM |
42.74 |
41.69 |
-1.05 |
| 3 |
Webb, Hannah B (10)
|
FGMCDA |
43.20 |
44.74 |
1.54 |
| 4 |
Viera, Isabel (8)
|
FGMACM |
|
45.11 |
- |
| 5 |
Natino, Abigail-Marie P (9)
|
FGSOFL |
43.88 |
46.15 |
2.27 |
| 6 |
Behar, Eva (10)
|
FGFFSC |
46.84 |
46.60 |
-0.24 |
| 7 |
Duranti, Pilar A (9)
|
FGSOFL |
48.98 |
48.88 |
-0.10 |
| 8 |
Carreno, Maria P (10)
|
FGMACM |
57.37 |
54.83 |
-2.54 |
| 9 |
Cardillo Ramos, Stella - (10)
|
FGMCDA |
|
59.80 |
- |
| 10 |
Viera, Andrea (8)
|
FGMACM |
|
1:00.33 |
- |
| 11 |
Buniakina, Sofia * (9)
|
FGNMST |
|
1:04.85 |
- |
| 12 |
Andapally, Anjana (9)
|
FGSOFL |
1:00.15 |
1:05.10 |
4.95 |
| 13 |
Martinez, Isabella M (9)
|
FGSGST |
|
1:05.17 |
- |
|
Scheingoltz, Lillian (10)
|
FGMCDA |
56.26 |
NS |
- |