| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Wang, Chloe (17)
|
MRYMID |
1:18.52 |
1:21.89 |
3.37 |
| 2 |
Wang, Katie (13)
|
MRYMID |
1:19.35 |
1:26.01 |
6.66 |
| 3 |
Reinoso, Emily A (16)
|
CTUN-Z |
1:27.32 |
1:27.03 |
-0.29 |
| 4 |
Petropoulos, Caroline A (13)
|
CTZEUS |
1:27.77 |
1:28.08 |
0.31 |
| 5 |
Evans, Amelia J (13)
|
MRRA |
1:29.81 |
1:30.43 |
0.62 |
| 6 |
Cahaly, Emma E (14)
|
MRYMID |
1:35.26 |
1:31.89 |
-3.37 |
| 7 |
Dewhurst, Julia J (13)
|
MRDA |
1:25.90 |
1:32.93 |
7.03 |
| 8 |
Jung, Grace (16)
|
MRYMID |
1:37.65 |
1:36.25 |
-1.40 |
| 9 |
Christinat, Elizabeth J (13)
|
CTZEUS |
1:37.07 |
1:37.31 |
0.24 |
| 10 |
Daniel, Alexis (14)
|
MRYMID |
1:44.29 |
1:44.40 |
0.11 |