| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Panamserkhang, Tenzin P (16)
|
MRLGAC |
58.52 |
59.34 |
0.82 |
| 2 |
Wong, Jacqueline (16)
|
MRYFD |
1:00.68 |
1:00.22 |
-0.46 |
| 3 |
Martinez-Reyes, Tristinye J (17)
|
MRLGAC |
59.85 |
1:01.66 |
1.81 |
| 4 |
Zhenilenko, Kathryn (16)
|
MRHES |
1:01.66 |
1:02.02 |
0.36 |
| 5 |
Tenzin, Quinci R (16)
|
MRLGAC |
1:02.49 |
1:03.31 |
0.82 |
| 6 |
Edwards, Lisia J (16)
|
MRYFD |
1:01.57 |
1:04.08 |
2.51 |
| 7 |
Torres, Cassidy A (16)
|
MRLGAC |
1:03.16 |
1:04.54 |
1.38 |
| 8 |
Mikheyeva, Marianna (16)
|
MRTRI |
1:05.96 |
1:04.85 |
-1.11 |
| 9 |
Ellefsen, Ryann (16)
|
MRTRI |
1:05.36 |
1:05.39 |
0.03 |
| 10 |
Pecorale, Nicholette (16)
|
MRTRI |
1:07.79 |
1:09.40 |
1.61 |
| 11 |
Zecar, Eva D (17)
|
MRYFD |
1:08.84 |
1:11.65 |
2.81 |
| 12 |
Xiao, Lucia (15)
|
MRYFD |
1:11.38 |
1:19.06 |
7.68 |
| 13 |
Block, Patricia (15)
|
MRTRI |
1:10.44 |
1:20.88 |
10.44 |
| 14 |
Gill, Julia G (15)
|
MRYFD |
1:22.36 |
1:21.26 |
-1.10 |
| 15 |
Coyotl, Antonia (15)
|
MRLGAC |
1:28.37 |
1:27.28 |
-1.09 |
|
Seck, Lalia A (15)
|
MRBKR |
1:30.73 |
DQ |
- |
|
Ratchik, Sophia A (15)
|
MRYFD |
1:47.59 |
NS |
- |