| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Traub, Celia B (11)
|
MAPAAC |
1:05.59 |
1:04.34 |
-1.25 |
| 1 |
Karnhaukhova, Anastasiya (12)
|
MATRA |
|
1:11.98 |
- |
| 1 |
Tewksbury, Madison O (12)
|
MAPAAC |
58.41 |
58.67 |
0.26 |
| 2 |
Pektor, Ava G (12)
|
MATRA |
1:05.83 |
1:05.43 |
-0.40 |
| 2 |
Hoyer, Alexis A (11)
|
MAUN |
1:10.87 |
1:12.26 |
1.39 |
| 2 |
Sergent, Brooke D (12)
|
MAPAAC |
58.47 |
59.51 |
1.04 |
| 3 |
Lin, Simone (12)
|
MAPAAC |
1:00.03 |
1:00.27 |
0.24 |
| 3 |
Taylor, Sovannary M (11)
|
MANEYS |
1:06.30 |
1:09.94 |
3.64 |
| 3 |
Mains-Ferrier, Madison M (12)
|
MAPAAC |
1:15.35 |
1:16.91 |
1.56 |
| 4 |
Fleischaker, Sada S (11)
|
MAPAAC |
1:19.76 |
1:23.62 |
3.86 |
| 5 |
Hoang, Grace T (11)
|
MAPAAC |
|
1:40.35 |
- |
|
Waked, Christelle M (11)
|
MATRA |
1:20.47 |
NS |
- |
|
Chiu, Jasmine S (12)
|
MAUN |
|
NS |
- |