| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Aviles, Izabella C (8)
|
ILBNY |
41.53 |
38.59 |
-2.94 |
| 2 |
Hunziker, Macy A (8)
|
ILFFSC |
41.17 |
39.65 |
-1.52 |
| 3 |
Brady, Paityn M (8)
|
ILBASC |
43.89 |
40.08 |
-3.81 |
| 4 |
Hendricks, Josephine M (8)
|
ILSPY |
43.10 |
43.81 |
0.71 |
| 5 |
Glynn, Reese K (8)
|
ILHEAT |
50.34 |
45.20 |
-5.14 |
| 6 |
Johnson, Karsyn T (8)
|
ILHEAT |
50.15 |
45.24 |
-4.91 |
| 7 |
Dossey, Emily A (8)
|
ILHEAT |
|
45.70 |
- |
| 8 |
Meier, Kenna R (8)
|
ILSPY |
48.46 |
47.66 |
-0.80 |
| 9 |
Gardiner, Kamryn E (7)
|
ILPAWW |
53.14 |
48.30 |
-4.84 |
| 10 |
Bloemer, Morgan A (8)
|
ILHHSC |
|
49.32 |
- |
| 11 |
Ruscin, Hannah K (7)
|
ILBASC |
48.24 |
50.22 |
1.98 |
| 12 |
Gibbs, Rourke M (8)
|
ILSPY |
|
51.07 |
- |
| 13 |
Reynolds, Lucy A (8)
|
ILBASC |
1:00.73 |
52.25 |
-8.48 |
| 14 |
Glesne, Taylor A (6)
|
ILPAWW |
1:00.15 |
53.40 |
-6.75 |
| 15 |
Mayrose, Marlena E (8)
|
ILBNY |
|
55.24 |
- |
| 16 |
Garee, Ellison E (7)
|
ILSPY |
49.72 |
56.70 |
6.98 |
| 17 |
Lambert, Ashley N (8)
|
ILFFSC |
56.12 |
58.07 |
1.95 |
| 18 |
Hilligoss, Madalyn A (8)
|
ILSPY |
1:01.64 |
59.00 |
-2.64 |
| 19 |
McKinley, Aaliyah J (7)
|
ILPAWW |
56.72 |
1:00.13 |
3.41 |
| 20 |
Parker, Sierra G (8)
|
ILBNSC |
1:01.31 |
1:02.45 |
1.14 |
| 21 |
Sefried, Audrey L (8)
|
ILPAWW |
|
1:05.09 |
- |
| 22 |
Hopkins-Meyer, Ayla J (7)
|
ILFFSC |
|
1:05.94 |
- |
| 23 |
Taulbee, Maria L (8)
|
ILFFSC |
1:06.80 |
1:08.17 |
1.37 |
| 24 |
Gilliland, Addison M (7)
|
ILFFSC |
1:18.93 |
1:16.14 |
-2.79 |
|
Song, Shinroong (6)
|
ILHEAT |
|
DQ |
- |
|
Gast, Sophia R (8)
|
ILPAWW |
48.84 |
NS |
- |