| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Moreno Camacho, Axel Leticia (14)
|
DELS |
1:06.65 |
1:07.81 |
1.16 |
| 2 |
Sta. Maria, Anika Mailey E (14)
|
CAPATH |
1:12.84 |
1:11.49 |
-1.35 |
| 3 |
Benoit, Samyra M (14)
|
CAPATH |
1:17.87 |
1:12.05 |
-5.82 |
| 4 |
Zamudio Alcantar, Ana Paula (14)
|
TIB |
1:15.88 |
1:13.03 |
-2.85 |
| 5 |
Lopez Rogero, Ana Valeria (14)
|
DELS |
1:10.88 |
1:13.91 |
3.03 |
| 6 |
Harms, Jordan N (14)
|
AZFORD |
1:12.25 |
1:14.25 |
2.00 |
| 7 |
Lu, Caroline S (14)
|
NMWILD |
1:14.70 |
1:15.57 |
0.87 |
| 8 |
Marek, Lucy E (13)
|
AZFAST |
1:18.59 |
1:16.02 |
-2.57 |
| 9 |
Wu, Hannah J (15)
|
AZFAST |
1:12.68 |
1:16.71 |
4.03 |
| 10 |
Kellum, Ariel A (13)
|
CAPATH |
1:16.64 |
1:21.22 |
4.58 |
| 11 |
Reidy, Ava R (14)
|
AZVC |
1:22.17 |
1:21.25 |
-0.92 |
| 12 |
Caldwell, Isabella C (13)
|
AZFORD |
1:20.10 |
1:22.32 |
2.22 |
| 13 |
Núñez Uruchurtu, Ximena (13)
|
TIB |
1:17.93 |
1:22.44 |
4.51 |
| 14 |
Christensen, Delainey F (14)
|
AZFORD |
1:09.71 |
1:24.67 |
14.96 |
| 15 |
Liera, Valeria (18)
|
AZFAST |
1:20.06 |
1:25.60 |
5.54 |
| 16 |
Creusere, Kathryn L (13)
|
NMLCAT |
1:13.21 |
1:27.86 |
14.65 |
|
White, Anna E (13)
|
AZFAST |
1:17.10 |
NS |
- |
|
Derivan, Brooke A (15)
|
AZFORD |
1:17.36 |
NS |
- |