| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Iannetta, Ava L (17)
|
MRBGNW |
1:00.91 |
59.68 |
-1.23 |
| 2 |
Whang, Taylor K (17)
|
MRBGNW |
58.98 |
59.77 |
0.79 |
| 3 |
Wohl, Katharine A (17)
|
MRBGNW |
1:02.42 |
1:01.61 |
-0.81 |
| 4 |
Alexander, Sinceraty D (17)
|
MRBGNW |
1:00.34 |
1:02.31 |
1.97 |
| 5 |
McIntyre, Savannah Y (16)
|
MRBGNW |
1:03.73 |
1:04.24 |
0.51 |
| 6 |
Convery, Sarah A (15)
|
MRBGNW |
1:08.24 |
1:08.32 |
0.08 |
| 7 |
Sun, Julia (15)
|
MRBGNW |
1:09.34 |
1:08.64 |
-0.70 |
| 8 |
Patterson, Clare M (16)
|
MRBGNW |
1:07.64 |
1:09.20 |
1.56 |
| 9 |
Tello, Lizette (16)
|
MRBGNW |
1:12.70 |
1:09.79 |
-2.91 |
| 10 |
Williams, Laura A (15)
|
MRBGNW |
1:11.30 |
1:12.37 |
1.07 |
| 11 |
Tsang, Jessica (16)
|
MRBGNW |
1:10.43 |
1:12.90 |
2.47 |