| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Healy, Sierra (10)
|
MRHYB |
1:13.17 |
1:13.15 |
-0.02 |
| 2 |
Liu, Kaitlyn S (10)
|
MRUN |
1:15.02 |
1:14.76 |
-0.26 |
| 3 |
Ahn, Hailey S (9)
|
MRLGAC |
1:33.80 |
1:19.08 |
-14.72 |
| 4 |
Panamserkhang, Tenzin P (9)
|
MRLGAC |
1:26.74 |
1:21.42 |
-5.32 |
| 5 |
Horiuchi, Naomi Z (10)
|
MRLGAC |
1:27.51 |
1:22.91 |
-4.60 |
| 6 |
Goldstein, Charley A (10)
|
MRRA |
1:22.09 |
1:23.51 |
1.42 |
| 7 |
Solomon, Mirabel K (10)
|
MRRA |
1:22.66 |
1:24.51 |
1.85 |
| 8 |
Pusing, Ava Y (9)
|
MRLGAC |
1:41.91 |
1:27.44 |
-14.47 |
| 9 |
Ramoino, Alexandra G (10)
|
MRRA |
1:31.96 |
1:27.50 |
-4.46 |
| 10 |
Zhao, Felicity E (9)
|
MRFLY |
|
1:28.36 |
- |
| 11 |
Karim, Azana S (9)
|
MRLGAC |
1:33.28 |
1:31.24 |
-2.04 |
| 12 |
Bice, Ciara M (10)
|
MRQNS |
1:29.76 |
1:31.31 |
1.55 |
| 13 |
Mendoza, Patricia Victoria G (9)
|
MRFLY |
|
1:31.72 |
- |
| 14 |
Nassar, Salma (10)
|
MRLGAC |
1:38.07 |
1:32.75 |
-5.32 |
|
Eljordan, Tiffany (9)
|
MRNCAC |
1:30.00 |
DQ |
- |
|
Xu, Sabrina D (9)
|
MRQNS |
|
DQ |
- |