| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Sabin, Riley C (14)
|
ILSPY |
1:09.09 |
1:13.78 |
4.69 |
| 2 |
Pippin, Soo-Yun L (13)
|
ILSPY |
1:17.06 |
1:15.98 |
-1.08 |
| 3 |
Ma, Sally (13)
|
ILHEAT |
1:19.01 |
1:18.13 |
-0.88 |
| 4 |
Romanotto, Lia B (14)
|
ILSPY |
1:17.74 |
1:18.80 |
1.06 |
| 5 |
Collins, Sydney R (13)
|
ILSPY |
1:19.64 |
1:20.48 |
0.84 |
| 6 |
Sowle, Sophia G (13)
|
ILSPY |
1:22.05 |
1:23.02 |
0.97 |
| 7 |
Whittaker, Ava M (13)
|
OZEDWY |
1:22.59 |
1:23.34 |
0.75 |
| 8 |
Reed, Riley E (13)
|
OZEDWY |
1:34.83 |
1:24.42 |
-10.41 |
| 9 |
Gawedzinski, Emily A (14)
|
ILSPY |
1:24.12 |
1:27.79 |
3.67 |
| 10 |
Curtis, Anna V (13)
|
ILSPY |
1:29.68 |
1:27.87 |
-1.81 |
| 11 |
McMurry, Olivia L (13)
|
ILHEAT |
1:31.21 |
1:27.92 |
-3.29 |
| 12 |
Wolters, Ashley K (13)
|
ILSPY |
1:32.12 |
1:29.53 |
-2.59 |
| 13 |
McPike, Kristin L (14)
|
ILHEAT |
|
1:29.78 |
- |
| 14 |
Bengtson, Lauren M (13)
|
ILBNY |
1:41.51 |
1:31.95 |
-9.56 |
| 15 |
Agans, Rebecca T (14)
|
ILSPY |
|
1:35.74 |
- |
| 16 |
Carmean, Samantha R (13)
|
ILQFY |
1:36.56 |
1:36.27 |
-0.29 |
| 17 |
Meyers, Alexandria N (13)
|
ILQFY |
1:51.14 |
1:41.71 |
-9.43 |