| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Zhang, Suri (13)
|
MRFREE |
1:17.54 |
1:15.79 |
-1.75 |
| 1 |
Lee, Priscilla J (13)
|
MRLIE |
1:22.82 |
1:24.52 |
1.70 |
| 2 |
Walsh, Julianne L (13)
|
MRLIE |
1:20.23 |
1:17.29 |
-2.94 |
| 2 |
Polauf, Sofia (13)
|
MRLIE |
1:22.55 |
1:25.07 |
2.52 |
| 3 |
De Mendonca, Sophia A (13)
|
MRMCBY |
1:19.28 |
1:17.66 |
-1.62 |
| 4 |
Oh, Abbigale H (13)
|
MRLIE |
1:19.19 |
1:17.77 |
-1.42 |
| 5 |
Egleston, Carys I (13)
|
MRYFD |
1:18.94 |
1:18.55 |
-0.39 |
| 6 |
Chin, Cassidy K (13)
|
MRFREE |
1:18.31 |
1:18.67 |
0.36 |
| 7 |
Sciortino, Sienna B (13)
|
MRLIE |
1:18.49 |
1:18.98 |
0.49 |
| 8 |
Dojillo, Chloe R (13)
|
MRLGAC |
1:18.79 |
1:19.60 |
0.81 |
| 9 |
Murphy, Melia H (13)
|
MRYFD |
1:23.08 |
1:19.64 |
-3.44 |
| 10 |
Spodek, Sienna L (13)
|
MRYFD |
1:22.09 |
1:19.78 |
-2.31 |
| 11 |
Roudnitsky, Julia (13)
|
MRFREE |
1:19.34 |
1:20.11 |
0.77 |
| 12 |
Trinidad, Chelanny A (13)
|
MRRED |
1:19.64 |
1:20.88 |
1.24 |
| 13 |
Clarke, Hailey E (13)
|
MRLIE |
1:23.28 |
1:21.39 |
-1.89 |
| 14 |
Meyer, Abby H (13)
|
MRLIE |
1:21.91 |
1:21.48 |
-0.43 |
| 15 |
Bartoletti, Isabella C (13)
|
MRYFD |
1:23.12 |
1:22.27 |
-0.85 |
| 16 |
Dixon, Audrey G (13)
|
MRMCBY |
1:21.85 |
1:22.49 |
0.64 |
| 17 |
Scott, Fiona A (13)
|
MRBKR |
1:21.87 |
1:22.65 |
0.78 |