| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Ng, Melanie Z (11)
|
MRCIY |
1:28.10 |
1:21.06 |
-7.04 |
| 2 |
Suteja, Kezia (11)
|
MRNCAC |
1:20.00 |
1:21.41 |
1.41 |
| 3 |
Zhu, Angela (11)
|
MRNCAC |
1:21.00 |
1:22.95 |
1.95 |
| 4 |
Brennan, Hope E (11)
|
MRNYCC |
1:25.44 |
1:23.76 |
-1.68 |
| 5 |
Ribeiro, Jasmine (12)
|
MRNYCC |
1:29.95 |
1:23.84 |
-6.11 |
| 6 |
Sichtnik, Sophia (11)
|
MRWSA |
1:29.21 |
1:27.65 |
-1.56 |
| 7 |
Ruhl, Sophie A (12)
|
MRRA |
1:28.05 |
1:28.20 |
0.15 |
| 8 |
Vitale, Miya N (11)
|
MRPATS |
1:28.58 |
1:28.21 |
-0.37 |
| 9 |
Evans, Amelia J (12)
|
MRRA |
1:32.33 |
1:30.59 |
-1.74 |
| 10 |
James, Jessica M (11)
|
MRRA |
1:35.04 |
1:31.36 |
-3.68 |
| 11 |
Hayes, Alana S (11)
|
MRPATS |
1:36.59 |
1:31.54 |
-5.05 |
| 12 |
Keh, Camilla (12)
|
MRNYCC |
1:35.76 |
1:32.10 |
-3.66 |
| 13 |
Carousso, Melissa G (12)
|
MRRA |
1:36.93 |
1:32.24 |
-4.69 |
| 14 |
Segree, Tyla (12)
|
MRCAS |
1:42.00 |
1:32.45 |
-9.55 |
| 15 |
Sekhar, Krupa C (11)
|
MRCIY |
1:37.68 |
1:33.26 |
-4.42 |
| 16 |
Miceli, Gianna R (11)
|
MRSSL |
1:35.51 |
1:34.06 |
-1.45 |
| 17 |
Ng, Amanda (11)
|
MRSSL |
1:30.49 |
1:35.83 |
5.34 |
| 18 |
Wynn, Tiana D (11)
|
MRCAS |
1:58.63 |
1:40.32 |
-18.31 |
| 19 |
Lopez, Isabella S (11)
|
MRPATS |
1:53.48 |
1:45.02 |
-8.46 |
| 20 |
Withanachchi, Kaaya M (11)
|
MRCIY |
1:55.40 |
1:50.52 |
-4.88 |
| 21 |
Vaughan-Johnson, Sophie (11)
|
MRRA |
1:45.00 |
1:52.43 |
7.43 |
| 22 |
DeLuca, Victoria G (11)
|
MRPATS |
1:53.20 |
1:56.50 |
3.30 |
| 23 |
Abrams, Anna M (11)
|
MRPATS |
|
1:58.57 |
- |
| 24 |
Shpak, Olivia G (11)
|
MRRA |
2:18.43 |
2:06.30 |
-12.13 |
|
Khitrov, Samantha (12)
|
MRRA |
2:45.00 |
DQ |
- |