| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Donlevy, Margaret M (16)
|
MRCIY |
1:01.81 |
1:02.39 |
0.58 |
| 2 |
Brierley, Jane B (14)
|
MREHY |
|
1:03.85 |
- |
| 3 |
Swanson, Sophia (17)
|
MREHY |
1:03.80 |
1:04.48 |
0.68 |
| 4 |
Chau, Germayne T (16)
|
MRCIY |
1:03.00 |
1:05.15 |
2.15 |
| 5 |
Brierley, Julia J (17)
|
MREHY |
1:05.64 |
1:08.16 |
2.52 |
| 6 |
Donlevy, Jean L (14)
|
MRCIY |
1:13.18 |
1:10.43 |
-2.75 |
| 7 |
Caminiti, Christina A (16)
|
MRCIY |
1:07.57 |
1:10.51 |
2.94 |
| 8 |
Barriteau, Lauren E (16)
|
MRCIY |
1:11.53 |
1:13.00 |
1.47 |
| 9 |
Dolan, Grace J (16)
|
MRCIY |
|
1:14.45 |
- |
| 10 |
Ahn, Jolie T (14)
|
MRCIY |
|
1:14.75 |
- |
| 11 |
Li, Rachel (13)
|
MRCIY |
1:17.14 |
1:15.84 |
-1.30 |
| 12 |
Miller, Amanda D (13)
|
MRCIY |
1:19.98 |
1:16.98 |
-3.00 |
| 13 |
Gousse, Caitlyn L (15)
|
MRCIY |
|
1:17.04 |
- |
| 14 |
Dragan, Juliana M (14)
|
MRCIY |
1:18.50 |
1:19.30 |
0.80 |
| 15 |
Caplin, Isabelle C (13)
|
MREHY |
1:24.18 |
1:21.05 |
-3.13 |
| 16 |
Withanachchi, Kaaya M (16)
|
MRCIY |
1:25.53 |
1:22.28 |
-3.25 |