| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
McGourty, Molly F (13)
|
MRBGNW |
1:08.15 |
1:06.78 |
-1.37 |
| 2 |
Euyoque, Nicole A (13)
|
MRWEST |
1:08.00 |
1:07.03 |
-0.97 |
| 3 |
Marcotullio, Isabella X (16)
|
MRUN |
1:06.08 |
1:07.16 |
1.08 |
| 4 |
Negast, Taylor N (17)
|
MRPAC |
1:05.82 |
1:07.50 |
1.68 |
| 5 |
Kung, Alexis D (13)
|
MRBGNW |
1:07.28 |
1:07.63 |
0.35 |
| 6 |
Lee, Lea (15)
|
NJUN |
1:04.19 |
1:08.37 |
4.18 |
| 7 |
Wong, Kelly M (16)
|
MRWEST |
1:07.01 |
1:09.64 |
2.63 |
| 8 |
Sarier-Smith, Hannah F (13)
|
MRPAC |
1:07.03 |
1:12.66 |
5.63 |
| 9 |
McPartland, Katie S (14)
|
MRUN |
1:07.01 |
1:13.16 |
6.15 |
| 10 |
D'Amore, Nicole A (15)
|
MRWEST |
1:10.38 |
1:13.53 |
3.15 |
| 11 |
Tassier, Katherine A (14)
|
MRBGNW |
1:13.63 |
1:14.35 |
0.72 |
| 12 |
Evazians, Rachel (13)
|
NJUN |
1:22.00 |
1:30.83 |
8.83 |
| 13 |
Raath, Lily R (14)
|
MRBGNW |
|
1:32.05 |
- |
|
Tripoli, Magdalena A (13)
|
MRMAKO |
31.99 |
DQ |
- |
|
Magliocchetti, Mary G (14)
|
MRPAC |
1:45.99 |
DQ |
- |