| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Eforo, Danielle (12)
|
MRGAEL |
1:16.34 |
1:12.94 |
-3.40 |
| 2 |
Pepper-Jones, BB (12)
|
MRCFB |
1:18.57 |
1:17.71 |
-0.86 |
| 3 |
Javier, Chrisabella K (12)
|
MRAPEX |
1:19.97 |
1:17.82 |
-2.15 |
| 4 |
Geraci, Catherine J (11)
|
MRYMID |
1:36.94 |
1:21.54 |
-15.40 |
| 5 |
Reyna, Salma (11)
|
MRYMID |
1:16.38 |
1:22.17 |
5.79 |
| 6 |
Chavez, Kaetlyn K (11)
|
MRAPEX |
1:24.39 |
1:25.60 |
1.21 |
| 7 |
Yang, Julia Y (11)
|
MRYMID |
1:21.61 |
1:26.49 |
4.88 |
| 8 |
Balachandran, Isabelle P (11)
|
MRYMID |
1:29.78 |
1:29.02 |
-0.76 |
| 9 |
Hutto, Sasha (12)
|
MRKBM |
1:37.86 |
1:38.44 |
0.58 |
| 10 |
Wong, Kristen A (11)
|
MRAPEX |
1:45.37 |
1:40.51 |
-4.86 |