| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Kwapich, Ella S (17)
|
AZOV |
1:18.32 |
1:19.71 |
1.39 |
| 2 |
Jarrold, Nora R (17)
|
AZOV |
1:22.05 |
1:23.04 |
0.99 |
| 3 |
Westhoven, Marcella G (16)
|
NJOCY |
1:25.09 |
1:26.07 |
0.98 |
| 4 |
Dickson, Anna H (15)
|
NJBB |
1:21.46 |
1:27.12 |
5.66 |
| 5 |
Fields, Ava M (15)
|
NJOCY |
1:23.93 |
1:29.66 |
5.73 |
| 6 |
English, Eliana L (15)
|
NJBB |
1:23.24 |
1:30.56 |
7.32 |
| 7 |
Sticco, Mikayla M (16)
|
NJRY |
1:27.20 |
1:35.32 |
8.12 |
| 8 |
Fetter, Luella M (15)
|
NJCJAC |
1:32.56 |
1:35.52 |
2.96 |
| 9 |
Kraft, Rory (15)
|
NJAPEX |
1:33.19 |
1:40.19 |
7.00 |
| 10 |
Kerwin, Aidan R (15)
|
AZOV |
1:38.74 |
1:40.96 |
2.22 |
| 11 |
Pospischil, Maeve M (15)
|
NJRY |
1:35.53 |
1:41.41 |
5.88 |
| 12 |
Woodring, Michelle R (16)
|
NJHCY |
1:43.75 |
1:48.90 |
5.15 |
| 13 |
Lester, Amaya R (15)
|
NJPPST |
1:55.00 |
1:58.73 |
3.73 |
| 14 |
Citron, Anna (17)
|
NJAPEX |
1:56.40 |
2:04.79 |
8.39 |