| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Moore, Michaela (15)
|
MRTRI |
1:03.12 |
1:02.53 |
-0.59 |
| 1 |
Immel, Elizabeth A (15)
|
MRLIE |
1:06.10 |
1:04.14 |
-1.96 |
| 2 |
Leal, Nancy (17)
|
MRRED |
1:04.00 |
1:04.46 |
0.46 |
| 2 |
Contreras, Genesis C (17)
|
MRMAKO |
1:08.43 |
1:09.63 |
1.20 |
| 3 |
Wong, Faith (15)
|
MRNYCP |
1:05.99 |
1:05.24 |
-0.75 |
| 3 |
Lee, Anna E (16)
|
MRYFD |
1:09.52 |
1:10.36 |
0.84 |
| 4 |
Jolia, Dina (15)
|
MRMPNY |
1:03.59 |
1:05.49 |
1.90 |
| 4 |
Dubavets, Margarita (15)
|
MRLIE |
1:04.92 |
1:10.45 |
5.53 |
| 5 |
Reich, Julia K (15)
|
MRBAD |
1:04.18 |
1:05.58 |
1.40 |
| 5 |
Perez, Miranda M (16)
|
MRKBM |
1:09.53 |
1:13.37 |
3.84 |
| 6 |
Suzana, Arlene (17)
|
MRAPEX |
1:07.42 |
1:05.98 |
-1.44 |
| 6 |
Wong, Kelly M (15)
|
MRWEST |
1:09.46 |
1:13.54 |
4.08 |
| 7 |
Dong, Janis H (17)
|
MRLIE |
1:05.15 |
1:05.99 |
0.84 |
| 7 |
Wyman, Julia N (15)
|
MRUN |
1:09.37 |
1:14.60 |
5.23 |
| 8 |
Chea, Rory (17)
|
MRNYCP |
1:07.19 |
1:06.05 |
-1.14 |
| 9 |
Winter, Lian L (16)
|
MRLIE |
1:06.92 |
1:06.22 |
-0.70 |
| 10 |
Platt, Claire (17)
|
MRMPNY |
1:06.45 |
1:06.42 |
-0.03 |
| 11 |
Quiller, Hailey M (15)
|
MRCAS |
1:03.19 |
1:06.58 |
3.39 |
| 12 |
Zhao, Joanna J (17)
|
MRAPEX |
1:05.28 |
1:06.96 |
1.68 |
| 13 |
Singh, Cristina P (15)
|
MRLIE |
1:04.24 |
1:07.25 |
3.01 |
| 14 |
Ng, Melanie (17)
|
MRNYCP |
1:07.33 |
1:07.71 |
0.38 |
| 15 |
O'Connell, Siobhan B (15)
|
MRLIE |
1:06.43 |
1:08.40 |
1.97 |
| 16 |
Javier, Chrisabella K (17)
|
MRAPEX |
1:06.60 |
1:09.14 |
2.54 |
| 17 |
Donlevy, Jean L (15)
|
MRCIY |
1:08.85 |
1:09.15 |
0.30 |
| 18 |
Roller, Mary Q (15)
|
MRFREE |
1:07.16 |
1:09.34 |
2.18 |