| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Coe, Angela A (15)
|
ILHEAT |
1:03.07 |
1:07.10 |
4.03 |
| 2 |
Coe, Jasmine M (17)
|
ILHEAT |
1:11.76 |
1:14.89 |
3.13 |
| 3 |
Gandhi, Arya S (14)
|
ILBNY |
1:15.21 |
1:15.60 |
0.39 |
| 4 |
Terry, Olivia R (13)
|
ILHEAT |
1:15.65 |
1:17.37 |
1.72 |
| 5 |
Dempsey, Olivia E (13)
|
ILHEAT |
1:17.86 |
1:19.87 |
2.01 |
| 6 |
Jung, Chloe K (13)
|
ILHEAT |
1:22.61 |
1:21.82 |
-0.79 |
| 7 |
Mousty, Kyleigh E (13)
|
ILPAWW |
1:23.71 |
1:22.89 |
-0.82 |
| 8 |
Gilbertz, Lin R (13)
|
ILHEAT |
1:28.52 |
1:24.98 |
-3.54 |
| 9 |
Fuller, Payton J (14)
|
ILHEAT |
|
1:25.80 |
- |
| 10 |
Mueller, Anna T (13)
|
ILBNY |
1:20.01 |
1:26.10 |
6.09 |
| 11 |
Dunakey, Becka D (12)
|
ILYDSC |
1:32.91 |
1:28.64 |
-4.27 |
| 12 |
Bopearatchy, Hiruni T (13)
|
ILPAWW |
1:31.24 |
1:28.95 |
-2.29 |
| 13 |
Steider, Catherine L (13)
|
ILFFSC |
|
1:31.95 |
- |
| 14 |
Gulley, Georgette G (13)
|
ILACAD |
1:31.32 |
1:32.56 |
1.24 |
| 15 |
Tibbitts, Jaycee G (14)
|
ILFFSC |
1:53.02 |
1:41.24 |
-11.78 |
| 16 |
Lawton, Elizabeth S (13)
|
ILMARL |
1:43.88 |
1:44.80 |
0.92 |