| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Atay, Naima M (9)
|
ORTHSC |
1:07.73 |
1:07.41 |
-0.32 |
| 2 |
Egeland, Peyton D (9)
|
ORBEND |
1:14.56 |
1:08.36 |
-6.20 |
| 3 |
Haefeli, Isabella G (9)
|
ORSZST |
1:12.57 |
1:11.65 |
-0.92 |
| 4 |
Wang, Claire * (9)
|
ORHEAT |
1:15.19 |
1:11.85 |
-3.34 |
| 5 |
Li, Cici (9)
|
ORTHSC |
1:12.80 |
1:11.98 |
-0.82 |
| 6 |
Pittman, Leighlonie M (9)
|
ORDDAC |
1:14.55 |
1:12.56 |
-1.99 |
| 7 |
Chan, Audrey B (9)
|
ORLOSC |
1:12.65 |
1:13.77 |
1.12 |
| 8 |
Hawkins, Chloe E (9)
|
ORRACE |
1:27.24 |
1:15.69 |
-11.55 |
| 9 |
Cobb Rodrigues, Leela * (9)
|
ORPAC |
1:20.59 |
1:15.86 |
-4.73 |
| 10 |
Lishka, Scarlett E (9)
|
OROCST |
1:14.59 |
1:16.81 |
2.22 |
| 11 |
Rauchholz, Emily F (9)
|
ORTDPS |
1:19.50 |
1:18.84 |
-0.66 |
| 12 |
Shields, Jalissa J (9)
|
ORWSC |
1:21.04 |
1:21.49 |
0.45 |