| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Trinidad, Mianny L (12)
|
MRRED |
1:08.16 |
1:12.17 |
4.01 |
| 2 |
Leal, Ashley (12)
|
MRRED |
1:13.90 |
1:15.91 |
2.01 |
| 3 |
Gonzalez, Emilianna (10)
|
MRAPEX |
1:15.20 |
1:16.07 |
0.87 |
| 4 |
Crisostomo, Samantha (10)
|
MRNYCP |
1:24.51 |
1:16.46 |
-8.05 |
| 5 |
Yan, Madelyn (10)
|
MRGATE |
1:23.24 |
1:19.87 |
-3.37 |
| 6 |
Chin, Cassidy * (9)
|
MRHS |
1:23.00 |
1:25.83 |
2.83 |
| 7 |
Huang, Cheri K (9)
|
MRHS |
|
1:26.77 |
- |
| 8 |
Ewald, Sydney (12)
|
MRGATE |
1:24.00 |
1:27.83 |
3.83 |
| 9 |
Reyes Aguirre, Juana (11)
|
MRAPEX |
1:30.27 |
1:28.00 |
-2.27 |
| 10 |
Banja, Cristal * (12)
|
MRHS |
1:29.04 |
1:30.04 |
1.00 |
| 11 |
Lally, Keely M (9)
|
MRHS |
|
1:31.34 |
- |