| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Dalton, Ciara I (13)
|
MRBGNW |
1:00.78 |
1:04.84 |
4.06 |
| 2 |
McHugh, Amanda K (14)
|
MRBGNW |
59.14 |
1:05.09 |
5.95 |
| 3 |
Townsend, Rachel A (14)
|
MRBGNW |
1:07.81 |
1:07.19 |
-0.62 |
| 4 |
Ketron, Anna E (13)
|
MRBGNW |
1:09.28 |
1:07.41 |
-1.87 |
| 5 |
Redpath, Frances M (13)
|
MRBGNW |
1:01.34 |
1:14.17 |
12.83 |
| 6 |
Nunez, Gabriella A (13)
|
MRBGNW |
1:14.13 |
1:17.12 |
2.99 |
| 7 |
Ford, Sydney E (13)
|
MRBGNW |
1:11.56 |
1:19.25 |
7.69 |
| 8 |
Reddy, Margot S (14)
|
MRBGNW |
1:16.30 |
1:20.21 |
3.91 |
| 9 |
DeGeorges, Elizabeth S (13)
|
MRBGNW |
1:17.61 |
1:21.12 |
3.51 |
| 10 |
Washington, Michelle G (14)
|
MRBGNW |
1:20.87 |
1:23.93 |
3.06 |
| 11 |
Hulme, Ella R (13)
|
MRBGNW |
1:21.22 |
1:28.42 |
7.20 |
| 12 |
Koestler, Aimee J (14)
|
MRBGNW |
1:32.83 |
1:36.29 |
3.46 |