| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Valentini, Diana V (17)
|
MRPAC |
1:07.62 |
1:10.25 |
2.63 |
| 2 |
Chen, Ella Y (15)
|
MREAST |
1:10.45 |
1:14.75 |
4.30 |
| 3 |
Kirkorian, Karen E (18)
|
MRPAC |
1:16.17 |
1:14.79 |
-1.38 |
| 4 |
D'Alessandro, Lena G (16)
|
MREAST |
1:06.78 |
1:14.84 |
8.06 |
| 5 |
Traynor, Ania K (16)
|
MRBAD |
1:14.96 |
1:15.62 |
0.66 |
| 6 |
Kelly, Grace K (17)
|
MREAST |
1:06.93 |
1:16.34 |
9.41 |
| 7 |
Mendoza, Patricia G (15)
|
MRQNS |
1:11.73 |
1:17.02 |
5.29 |
| 8 |
Flores, Isabella (16)
|
MRQNS |
1:17.41 |
1:18.93 |
1.52 |
| 9 |
Tan, Sayjel E (16)
|
MRQNS |
1:15.32 |
1:19.16 |
3.84 |
| 10 |
Bouzarouata, Salma K (15)
|
MRQNS |
1:18.17 |
1:20.95 |
2.78 |
| 11 |
Iacobazzi, Michela (16)
|
MREAST |
1:21.58 |
1:22.70 |
1.12 |
| 12 |
Lengyel, Sophia (15)
|
MRQNS |
1:22.41 |
1:23.09 |
0.68 |
| 13 |
Rodriguez, Kailey S (15)
|
MREAST |
1:16.57 |
1:23.15 |
6.58 |
| 14 |
White, Symantha G (15)
|
MREAST |
1:21.58 |
1:23.19 |
1.61 |
| 15 |
Rozman, Miriam S (15)
|
MRPAC |
1:20.61 |
1:24.67 |
4.06 |