| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Chin, Grace E (12)
|
MRNYSA |
1:08.34 |
1:06.68 |
-1.66 |
| 2 |
Martinez-Reyes, Tristinye (11)
|
MRNYCP |
1:07.35 |
1:07.49 |
0.14 |
| 3 |
Park, Kayce H (11)
|
MRNYSA |
1:11.45 |
1:11.72 |
0.27 |
| 4 |
Sarpong, Afia (12)
|
MRHVD |
1:12.50 |
1:12.14 |
-0.36 |
| 5 |
Trinidad, Mianny L (12)
|
MRRED |
1:16.96 |
1:13.70 |
-3.26 |
| 6 |
Leal, Ashley (11)
|
MRRED |
1:18.35 |
1:13.90 |
-4.45 |
| 7 |
Suzuki, Mako (12)
|
MRYMID |
1:17.54 |
1:14.83 |
-2.71 |
| 8 |
Ogaki, Chisa (12)
|
MRYMID |
1:23.87 |
1:17.49 |
-6.38 |
| 9 |
Toledo, Ylenia E (12)
|
MRAPEX |
1:14.94 |
1:18.10 |
3.16 |
| 10 |
Losada, Aleksandra (11)
|
MRNYSA |
1:22.31 |
1:18.94 |
-3.37 |
| 11 |
Whang, Samantha E (11)
|
MRNYSA |
1:18.11 |
1:20.02 |
1.91 |
| 12 |
Reyes Aguirre, Juana (11)
|
MRAPEX |
1:33.39 |
1:30.27 |
-3.12 |
| 13 |
Baks, Janneke P (11)
|
MRHVD |
1:35.33 |
1:37.42 |
2.09 |