| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Kozma, Blanka (16)
|
MRYMID |
57.32 |
1:00.91 |
3.59 |
| 2 |
Wang, Chloe (17)
|
MRYMID |
58.39 |
1:00.99 |
2.60 |
| 3 |
Burnham, Melissa E (15)
|
CTZEUS |
58.44 |
1:01.69 |
3.25 |
| 4 |
Gabriel, Tara N (16)
|
MRYMID |
59.88 |
1:02.10 |
2.22 |
| 5 |
Brew, Margaret C (14)
|
MRYMID |
1:01.81 |
1:03.04 |
1.23 |
| 6 |
Reyna, Margaux (14)
|
MRYMID |
1:03.07 |
1:03.26 |
0.19 |
| 7 |
Bayer, Cally (15)
|
MRYMID |
1:05.65 |
1:07.61 |
1.96 |
| 8 |
Popielarz, Victoria A (13)
|
CTZEUS |
1:04.02 |
1:07.73 |
3.71 |
| 9 |
Cavanagh, Rebecca L (15)
|
CTUN-Z |
1:02.29 |
1:08.11 |
5.82 |
| 10 |
Laurenceau, Alyssa M (13)
|
MRYMID |
1:06.45 |
1:08.97 |
2.52 |
| 11 |
Jung, Grace (16)
|
MRYMID |
1:09.49 |
1:09.24 |
-0.25 |
| 12 |
Becerra, NancyMaria (17)
|
MRYMID |
1:09.75 |
1:10.04 |
0.29 |
| 13 |
Dewhurst, Julia J (13)
|
MRDA |
1:02.73 |
1:10.33 |
7.60 |
| 14 |
Petropoulos, Caroline A (13)
|
CTZEUS |
1:10.79 |
1:10.75 |
-0.04 |
| 15 |
Valerio, Sofia A (14)
|
MRYMID |
1:07.45 |
1:11.14 |
3.69 |
| 16 |
Kass, Gabrielle (16)
|
MRYMID |
1:09.29 |
1:11.75 |
2.46 |
| 17 |
Belmar, Ayanna F (14)
|
MRYMID |
1:14.16 |
1:12.71 |
-1.45 |
| 18 |
Cahaly, Emma E (14)
|
MRYMID |
1:07.34 |
1:13.66 |
6.32 |
| 19 |
Daniel, Alexis (14)
|
MRYMID |
1:10.29 |
1:13.67 |
3.38 |
| 20 |
Rodriguez, Anna V (13)
|
MRYMID |
|
1:15.43 |
- |
| 21 |
Tatar, Sophie E (13)
|
MRCOND |
1:17.16 |
1:17.35 |
0.19 |
| 22 |
Christinat, Elizabeth J (13)
|
CTZEUS |
1:21.11 |
1:21.80 |
0.69 |
| 23 |
Khitrov, Samantha (13)
|
MRRA |
1:22.52 |
1:21.99 |
-0.53 |
| 24 |
Lagomarsino, Felicity J (14)
|
CTZEUS |
1:08.61 |
1:26.06 |
17.45 |
|
Linder, Hayley E (15)
|
CTUN-Z |
55.35 |
DQ |
- |