| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Chang, Annie K (13)
|
NTLAC |
1:09.41 |
1:08.76 |
-0.65 |
| 2 |
Warcholinska, Hanna M (14)
|
NTLAC |
1:09.70 |
1:10.21 |
0.51 |
| 3 |
Chen, Olivia J (13)
|
NTLAC |
1:19.46 |
1:10.74 |
-8.72 |
| 4 |
Janning, Tatum J (13)
|
NTNTN |
1:11.49 |
1:11.91 |
0.42 |
| 5 |
Huang, Angelina (12)
|
NTDM |
1:14.20 |
1:14.48 |
0.28 |
| 6 |
Farlow, Morgan M (11)
|
NTTFA |
1:13.71 |
1:14.78 |
1.07 |
| 7 |
Wakabayashi, Koharu S (14)
|
NTLAC |
1:12.95 |
1:15.06 |
2.11 |
| 8 |
Marlin, Megan E (14)
|
NTLAC |
1:13.39 |
1:16.25 |
2.86 |
| 9 |
Meza, Rivah (10)
|
NTTFA |
1:26.44 |
1:24.39 |
-2.05 |
| 10 |
Choi, Helen Y (10)
|
NTLAC |
1:24.19 |
1:26.95 |
2.76 |
| 11 |
Green, Kamille K (10)
|
NTMAC |
1:24.60 |
1:27.40 |
2.80 |