| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Lee, Jamie T (16)
|
MRBGNW |
57.69 |
59.87 |
2.18 |
| 2 |
Sawkins, Catherine J (16)
|
MRBGNW |
59.36 |
1:02.51 |
3.15 |
| 3 |
Elms, Gaige L (16)
|
MRBGNW |
1:02.12 |
1:04.28 |
2.16 |
| 4 |
McHugh, Amanda K (15)
|
MRBGNW |
58.29 |
1:05.03 |
6.74 |
| 5 |
Boddie, Erin E (17)
|
MRBGNW |
1:04.68 |
1:07.73 |
3.05 |
| 6 |
Dubin, Karen E (15)
|
MRBGNW |
1:03.85 |
1:09.37 |
5.52 |
| 7 |
Desiderio, Anna N (16)
|
MRBGNW |
1:06.95 |
1:09.56 |
2.61 |
| 8 |
Cho, Jessica J (17)
|
MRBGNW |
1:06.98 |
1:09.69 |
2.71 |
| 9 |
Hellman, Rachel E (17)
|
MRBGNW |
1:01.34 |
1:09.87 |
8.53 |
| 10 |
Garofolo, Juliette M (15)
|
MRBGNW |
1:04.96 |
1:11.52 |
6.56 |
| 11 |
Weiner, Margaux K (16)
|
MRBGNW |
1:05.37 |
1:11.88 |
6.51 |
| 12 |
Li, Laura Y (16)
|
MRBGNW |
1:06.78 |
1:15.85 |
9.07 |
| 13 |
Potenza, Giovanna A (17)
|
MRBGNW |
1:13.98 |
1:20.42 |
6.44 |