| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Ma, Sally (13)
|
ILHEAT |
55.42 |
55.05 |
-0.37 |
| 2 |
Sabin, Riley C (14)
|
ILSPY |
56.26 |
59.66 |
3.40 |
| 3 |
Whittaker, Ava M (13)
|
OZEDWY |
1:06.24 |
1:01.20 |
-5.04 |
| 4 |
Sowle, Sophia G (13)
|
ILSPY |
1:01.06 |
1:04.30 |
3.24 |
| 5 |
Romanotto, Lia B (14)
|
ILSPY |
1:03.62 |
1:04.35 |
0.73 |
| 6 |
Pippin, Soo-Yun L (13)
|
ILSPY |
1:05.64 |
1:04.60 |
-1.04 |
| 7 |
Collins, Sydney R (13)
|
ILSPY |
1:03.74 |
1:04.97 |
1.23 |
| 8 |
Bengtson, Lauren M (13)
|
ILBNY |
1:10.00 |
1:05.31 |
-4.69 |
| 9 |
Gawedzinski, Emily A (14)
|
ILSPY |
58.24 |
1:05.70 |
7.46 |
| 10 |
McMurry, Olivia L (13)
|
ILHEAT |
1:01.66 |
1:05.95 |
4.29 |
| 11 |
Reed, Riley E (13)
|
OZEDWY |
1:10.36 |
1:06.77 |
-3.59 |
| 12 |
Carmean, Samantha R (13)
|
ILQFY |
1:08.59 |
1:06.92 |
-1.67 |
| 13 |
McPike, Kristin L (14)
|
ILHEAT |
|
1:10.09 |
- |
| 14 |
Agans, Rebecca T (14)
|
ILSPY |
|
1:11.51 |
- |
| 15 |
Wolters, Ashley K (13)
|
ILSPY |
1:24.53 |
1:13.71 |
-10.82 |
| 16 |
Curtis, Anna V (13)
|
ILSPY |
1:11.53 |
1:14.58 |
3.05 |
| 17 |
Meyers, Alexandria N (13)
|
ILQFY |
1:12.44 |
1:19.50 |
7.06 |