| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Angelov, Melanie N (12)
|
ILLATT |
30.23 |
31.58 |
1.35 |
| 2 |
Fredrickson, Kathryn E (12)
|
ILDCST |
33.06 |
33.89 |
0.83 |
| 3 |
Maces, Melecia L (12)
|
ILFVFY |
39.38 |
37.62 |
-1.76 |
| 4 |
Schoenfielder, Isabella G (12)
|
ILFVFY |
42.52 |
40.14 |
-2.38 |
| 5 |
Maratea, Kylie A (12)
|
ILFVFY |
41.88 |
40.15 |
-1.73 |
| 6 |
Biela, Maya (12)
|
ILLATT |
39.41 |
40.55 |
1.14 |
| 7 |
Farrell, Kate M (11)
|
ILDCST |
36.61 |
40.63 |
4.02 |
| 8 |
Haskell, Mirella A (11)
|
ILILVY |
48.01 |
44.33 |
-3.68 |
| 9 |
Allison, Molly O (11)
|
ILDCST |
47.92 |
49.90 |
1.98 |
| 10 |
Davis, Ashlyn N (12)
|
ILFVFY |
|
52.88 |
- |
| 11 |
Murray, Janiah Z (11)
|
ILFVFY |
55.82 |
56.45 |
0.63 |
| 12 |
Jordan, Bernadette M (11)
|
ILFVFY |
|
1:02.02 |
- |
|
Ziegler, Abigail J (11)
|
ILFVFY |
44.91 |
DQ |
- |
|
Clapp Duhau, Maia (11)
|
ILDCST |
46.39 |
DQ |
- |
|
Hall, Sophia R (11)
|
ILDCST |
41.14 |
DQ |
- |