| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Torres, Sofia A (10)
|
ILFVFY |
1:08.80 |
1:08.42 |
-0.38 |
| 2 |
Denny, Kendall P (10)
|
ILFVFY |
1:10.52 |
1:10.45 |
-0.07 |
| 3 |
Ross, Izabelle T (9)
|
ILFVFY |
1:14.49 |
1:12.68 |
-1.81 |
| 4 |
Skubiak, Vera A (9)
|
ILFVFY |
1:12.49 |
1:12.73 |
0.24 |
| 5 |
Siniawski, Sophia E (10)
|
ILKKEE |
1:26.92 |
1:13.50 |
-13.42 |
| 6 |
Haberkorn, Rachel S (9)
|
ILDCST |
1:21.96 |
1:15.89 |
-6.07 |
| 7 |
Ziegler, Reese D (9)
|
ILFVFY |
1:17.68 |
1:18.22 |
0.54 |
| 8 |
Ludwikowski, Piper L (10)
|
ILFVFY |
1:25.57 |
1:19.78 |
-5.79 |
| 9 |
Calvert, Alle M (9)
|
ILFVFY |
1:27.39 |
1:20.20 |
-7.19 |
| 10 |
Lehan, Maya J (9)
|
ILDCST |
1:30.51 |
1:20.67 |
-9.84 |
| 11 |
Martin, Natalie S (9)
|
ILRAYS |
1:19.00 |
1:21.71 |
2.71 |
| 12 |
Schneider, Annelise F (10)
|
ILKKEE |
|
1:22.56 |
- |
| 13 |
Vilic, Nadia S (9)
|
ILRAYS |
1:22.67 |
1:28.43 |
5.76 |
| 14 |
Shrestha, Naonika (9)
|
ILRAYS |
|
1:28.81 |
- |
| 15 |
Beckley, Esme E (10)
|
ILDCST |
1:29.09 |
1:29.77 |
0.68 |
| 16 |
Lyle, Sophia R (9)
|
ILDCST |
1:36.01 |
1:30.67 |
-5.34 |
| 17 |
Pugh, Madelyn P (10)
|
ILDCST |
1:34.90 |
1:36.88 |
1.98 |
| 18 |
Frasca, Gianna M (9)
|
ILRAYS |
1:39.35 |
1:40.25 |
0.90 |