| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Li, Myra C (10)
|
PNIST |
1:14.07 |
1:11.38 |
-2.69 |
| 2 |
Rychlik, Kyleigh I (10)
|
PNVAST |
1:13.15 |
1:11.85 |
-1.30 |
| 3 |
Chene, Neve M (10)
|
PNOCA |
1:12.79 |
1:12.44 |
-0.35 |
| 4 |
Chan, Madison T (10)
|
PNIST |
1:19.21 |
1:16.48 |
-2.73 |
| 5 |
Bai, Allie X (10)
|
PNWAVE |
1:17.32 |
1:16.59 |
-0.73 |
| 6 |
Fernandez-Budiman, Ximena (10)
|
PNOCA |
1:19.39 |
1:17.43 |
-1.96 |
| 7 |
Guan, Elaina (10)
|
PNBC |
1:18.08 |
1:18.01 |
-0.07 |
| 8 |
Enge, Tatum L (9)
|
PNBC |
1:17.92 |
1:18.31 |
0.39 |
| 9 |
Effgen, Clare M (10)
|
PNCSC |
1:18.74 |
1:18.70 |
-0.04 |
| 10 |
Zheng, Ting (10)
|
PNPDST |
1:22.15 |
1:18.80 |
-3.35 |
| 11 |
LaBella, Lucy J (10)
|
PNSMAC |
1:23.46 |
1:19.43 |
-4.03 |
| 12 |
Tng, Zoe (9)
|
PNPRO |
1:17.71 |
1:19.52 |
1.81 |
| 13 |
Lehmann, Emma J (10)
|
PNSRST |
1:21.19 |
1:19.90 |
-1.29 |
| 14 |
Clay, Elizabeth G (9)
|
PNIST |
1:20.39 |
1:21.78 |
1.39 |
| 15 |
Guilanians, Niobe (10)
|
PNGAC |
1:21.91 |
1:22.05 |
0.14 |
| 16 |
Seibert, Eliza N (10)
|
PNSMAC |
1:23.28 |
1:23.63 |
0.35 |
| 17 |
Wong, Chelsea Z (10)
|
PNBC |
1:23.43 |
1:25.33 |
1.90 |
| 17 |
Tuntikanokporn, Ananda A (9)
|
PNBC |
1:26.45 |
1:25.33 |
-1.12 |
| 19 |
Magnano, Analisa M (10)
|
PNBC |
1:24.79 |
1:25.85 |
1.06 |