| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Raetzke, Hannah M (13)
|
ILDCST |
1:01.57 |
1:01.83 |
0.26 |
| 2 |
Sanyal, Angelica (13)
|
ILDCST |
1:04.55 |
1:03.91 |
-0.64 |
| 3 |
Orcullo, Britney N (13)
|
ILLATT |
1:05.37 |
1:04.72 |
-0.65 |
| 4 |
Gonzales, Sophia L (14)
|
ILFVFY |
1:04.28 |
1:04.81 |
0.53 |
| 5 |
Goff, Kaitlyn E (13)
|
ILDCST |
1:02.86 |
1:04.98 |
2.12 |
| 6 |
Hall, Ana L (13)
|
ILDCST |
1:07.02 |
1:06.14 |
-0.88 |
| 7 |
Stauder, Grace E (13)
|
ILLATT |
1:02.62 |
1:07.19 |
4.57 |
| 8 |
Martinez, Isabella R (13)
|
ILDCST |
1:03.28 |
1:07.81 |
4.53 |
| 9 |
Karolewicz, Ava M (13)
|
ILDCST |
1:05.22 |
1:08.42 |
3.20 |
| 10 |
Sudnik, Kaylyn M (13)
|
ILFVFY |
1:09.66 |
1:11.06 |
1.40 |
| 11 |
Pugh, Leah O (13)
|
ILDCST |
1:19.26 |
1:20.21 |
0.95 |
| 12 |
Robbins, Anna Elizabeth F (14)
|
ILDCST |
1:22.60 |
1:27.38 |
4.78 |