| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Rypkema, Anneliese M (17)
|
SCYCSC |
1:19.24 |
1:19.31 |
0.07 |
| 2 |
Barto, Mary H (15)
|
CTCDOG |
1:19.31 |
1:19.41 |
0.10 |
| 3 |
Eldridge, Dylann (13)
|
NJOCY |
1:20.87 |
1:19.85 |
-1.02 |
| 4 |
Yu, Sophia (15)
|
VACYAC |
1:24.74 |
1:20.17 |
-4.57 |
| 5 |
Leonetti, Sofia (16)
|
NJWY |
1:21.01 |
1:20.37 |
-0.64 |
| 6 |
Washburn, Elizabeth D (14)
|
NJSAY |
1:23.80 |
1:21.02 |
-2.78 |
| 7 |
Rocheleau, Amber E (17)
|
CTLEHY |
1:25.77 |
1:21.17 |
-4.60 |
| 8 |
DePinto, Alanna B (15)
|
CTLEHY |
1:21.32 |
1:21.93 |
0.61 |
| 9 |
Gallucci, Gabriella J (16)
|
NJWFY |
1:25.29 |
1:22.54 |
-2.75 |
| 10 |
Carroll, Spencer L (14)
|
CTCDOG |
1:21.84 |
1:23.72 |
1.88 |
| 11 |
Warner, Bella N (17)
|
MABRY |
1:25.97 |
1:24.28 |
-1.69 |
| 12 |
Donnelly, Kiersten M (16)
|
MAUMLY |
1:33.83 |
1:24.39 |
-9.44 |