| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Chambers, Noa J (15)
|
NEATST |
1:04.33 |
1:01.88 |
-2.45 |
| 2 |
Sotek, Alexandra T (16)
|
NESNAP |
1:05.10 |
1:04.60 |
-0.50 |
| 3 |
Yohan, Tessa E (18)
|
NEATST |
1:06.77 |
1:04.93 |
-1.84 |
| 4 |
Edison, Kathleen R (17)
|
NEUSC |
1:02.06 |
1:05.06 |
3.00 |
| 5 |
Church, Eleanor J (18)
|
NEUSC |
1:02.63 |
1:05.10 |
2.47 |
| 6 |
Juethner, Sophie G (17)
|
NEUSC |
1:11.17 |
1:05.63 |
-5.54 |
| 7 |
Zenkin, Sophie A (17)
|
NEUSC |
1:04.73 |
1:05.97 |
1.24 |
| 8 |
St. Hilaire, Emma F (16)
|
NEATST |
1:07.14 |
1:06.94 |
-0.20 |
| 9 |
Cui, Estella S (15)
|
NEUSC |
1:07.89 |
1:07.51 |
-0.38 |
| 10 |
Zetea, Alexandra B (17)
|
NEPHX |
1:07.97 |
1:07.91 |
-0.06 |
| 11 |
Cataldo, Olivia G (17)
|
NEWTST |
1:05.29 |
1:08.18 |
2.89 |
| 12 |
Burnham, Ava E (17)
|
NEWTST |
1:04.71 |
1:08.47 |
3.76 |
| 13 |
Downer, Lindsey K (16)
|
NEUSC |
1:10.00 |
1:08.54 |
-1.46 |
| 14 |
Galicki, Elizabeth K (17)
|
NEWTST |
1:04.19 |
1:09.42 |
5.23 |
| 15 |
Turku, Adea (16)
|
NEATST |
1:20.06 |
1:09.62 |
-10.44 |
| 16 |
Latham, Catherine M (16)
|
NEUSC |
1:12.00 |
1:12.45 |
0.45 |
| 17 |
Jiang, Bella (16)
|
NEUSC |
1:11.86 |
1:12.58 |
0.72 |
| 18 |
Zhou, Chelsea E (15)
|
NEUSC |
1:11.20 |
1:12.65 |
1.45 |
| 19 |
Richards, Mariella J (15)
|
NEWTST |
1:26.03 |
1:13.46 |
-12.57 |
| 20 |
Dyer, Regina G (16)
|
NEWTST |
1:13.58 |
1:14.66 |
1.08 |
| 21 |
Piantedosi, Sofia L (15)
|
NEWTST |
|
1:28.34 |
- |