| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Lee, Anna E (18)
|
MRYFD |
1:10.93 |
1:10.31 |
-0.62 |
| 2 |
Wu, Madison H (15)
|
MRYFD |
1:10.50 |
1:10.64 |
0.14 |
| 3 |
Chavez, Kaetlyn K (17)
|
MRAPEX |
1:11.90 |
1:11.05 |
-0.85 |
| 4 |
Davidson, Ren S (15)
|
MRMAKO |
1:15.36 |
1:11.56 |
-3.80 |
| 5 |
Burwell, Brigid R (15)
|
MRYFD |
1:14.53 |
1:14.10 |
-0.43 |
| 6 |
Chertorisky, Maya (15)
|
MRMAKO |
1:15.87 |
1:16.17 |
0.30 |
| 7 |
Lutchmansingh, Emily E (18)
|
MRRED |
1:16.38 |
1:16.79 |
0.41 |
| 8 |
Ng, Pia K (15)
|
MRYFD |
1:20.82 |
1:18.79 |
-2.03 |
| 9 |
Sanchez, Amya F (15)
|
MRAPEX |
1:14.83 |
1:19.52 |
4.69 |
| 10 |
Weingard, Alexandra K (15)
|
MRYFD |
1:26.47 |
1:21.14 |
-5.33 |
| 11 |
Mary, Liyana T (16)
|
MRRED |
1:19.36 |
1:21.63 |
2.27 |
| 12 |
Ng, Sienna W (15)
|
MRYFD |
1:20.96 |
1:22.06 |
1.10 |
| 13 |
Lutchmansingh, Serena A (15)
|
MRRED |
1:23.50 |
1:22.98 |
-0.52 |
| 14 |
Moore, Alana H (18)
|
MRAPEX |
1:28.99 |
1:25.34 |
-3.65 |
| 15 |
Grommes, Grace (18)
|
MRMAKO |
1:25.01 |
1:26.85 |
1.84 |
| 16 |
Champagnie, Chanel (15)
|
MRKBM |
1:35.13 |
1:43.48 |
8.35 |
|
Kilbane, Nicole (17)
|
MRYFD |
1:37.61 |
DQ |
- |
|
Steiner, Maia M (15)
|
MRYFD |
1:18.90 |
NS |
- |