| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Calderon, Ashley M (15)
|
MRUN |
58.70 |
1:02.94 |
4.24 |
| 2 |
Reinoso, Pamela P (15)
|
MRUN |
1:02.46 |
1:06.63 |
4.17 |
| 3 |
Kung, Annabelle D (13)
|
MRBGNW |
1:04.51 |
1:07.44 |
2.93 |
| 4 |
Ivanaviciute, Gabriele (13)
|
CTZEUS |
1:04.99 |
1:11.21 |
6.22 |
| 5 |
Remson, Sandra K (17)
|
MRUN |
1:09.53 |
1:12.04 |
2.51 |
| 6 |
Sun, Julia (13)
|
MRBGNW |
1:14.30 |
1:14.23 |
-0.07 |
| 7 |
Isabella, Molly A (14)
|
MRSMC |
1:13.59 |
1:15.03 |
1.44 |
| 8 |
Magee, Reed E (14)
|
MRBGNW |
1:13.48 |
1:15.26 |
1.78 |
| 9 |
Ferranto, Natalia R (13)
|
CTZEUS |
1:05.24 |
1:15.91 |
10.67 |
| 10 |
Cuevas, Emilia R (16)
|
MRUN |
1:07.97 |
1:16.62 |
8.65 |
| 11 |
Parizot, Martha-Victoria (15)
|
MRUN |
1:19.22 |
1:17.00 |
-2.22 |
| 12 |
Chen, Joyce W (13)
|
MRBGNW |
1:21.45 |
1:17.84 |
-3.61 |
| 13 |
Chia, Molly (16)
|
MRYMID |
1:14.94 |
1:18.75 |
3.81 |
| 14 |
Cedeno, Sofia M (15)
|
MRYMID |
1:14.37 |
1:19.11 |
4.74 |
| 15 |
Cole, Emily F (13)
|
MRBGNW |
1:21.14 |
1:22.55 |
1.41 |
| 16 |
Gueorguiev, Daniela S (13)
|
CTZEUS |
1:56.93 |
1:26.57 |
-30.36 |
| 17 |
Belmar, Ayanna F (17)
|
MRYMID |
1:16.40 |
1:28.10 |
11.70 |
| 18 |
Minchala, Kimberly N (13)
|
MRYMID |
1:22.68 |
1:33.17 |
10.49 |