| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Torres, Sofia R (9)
|
MRWEST |
1:25.87 |
1:26.68 |
0.81 |
| 2 |
Arciniegas, Alessandra (9)
|
MRCOND |
1:26.00 |
1:27.07 |
1.07 |
| 3 |
Jorsling, Jisella C (9)
|
MRBAD |
1:31.08 |
1:28.21 |
-2.87 |
| 4 |
Briceno, Isabella (9)
|
MRNYSA |
1:31.76 |
1:31.26 |
-0.50 |
| 5 |
Johnson, Evangeline N (9)
|
MRAGUA |
1:32.93 |
1:31.40 |
-1.53 |
| 6 |
Wong, Cailin (9)
|
MRNYCC |
1:28.52 |
1:31.51 |
2.99 |
| 7 |
Messinger-Nanni, Julia (9)
|
MRAGUA |
1:29.66 |
1:31.57 |
1.91 |
| 8 |
Lim Laurie, Maia K (9)
|
MRAGUA |
1:28.38 |
1:31.65 |
3.27 |
| 9 |
Lee, Yuna (9)
|
MRLIAC |
1:30.95 |
1:34.11 |
3.16 |
|
Wang, Louisa M (9)
|
MRWEST |
1:32.89 |
NS |
- |