| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Haggerty, Anna L (12)
|
NJNJRC |
1:05.29 |
1:04.07 |
-1.22 |
| 2 |
Harlan, Morgan K (12)
|
MAWCAY |
1:03.92 |
1:04.94 |
1.02 |
| 3 |
D'Orsi, Hope E (12)
|
NJNJRC |
1:06.17 |
1:05.72 |
-0.45 |
| 4 |
Caravello, Sofia R (12)
|
MASJAC |
1:08.97 |
1:08.08 |
-0.89 |
| 5 |
McNamara, Elizabeth F (12)
|
MAWCAY |
1:07.02 |
1:08.53 |
1.51 |
| 6 |
Kiesel, Addison E (11)
|
MASJAC |
1:09.42 |
1:10.58 |
1.16 |
| 7 |
Ong, Thea (12)
|
MASJAC |
1:10.57 |
1:10.76 |
0.19 |
| 8 |
Wilent, Viola V (11)
|
MALMAC |
1:08.87 |
1:12.05 |
3.18 |
| 9 |
Kent, Samantha V (12)
|
MAUNSJ |
1:15.02 |
1:14.66 |
-0.36 |
| 10 |
Wilkinson, Madelyn A (12)
|
MASJAC |
1:15.79 |
1:16.53 |
0.74 |
|
Gebhart, Addison F (11)
|
MASJAC |
1:14.93 |
DQ |
- |