| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Szadorski, Alexa N (18)
|
ILFVFY |
56.90 |
59.39 |
2.49 |
| 2 |
Colvin, Gracie L (15)
|
ILMAC |
1:03.00 |
1:00.23 |
-2.77 |
| 3 |
Kilmer, Audrey G (16)
|
ILSSSC |
59.30 |
1:01.41 |
2.11 |
| 4 |
Burnham, Joanna S (18)
|
ILDCST |
59.40 |
1:03.80 |
4.40 |
| 5 |
Clark, Avery E (17)
|
ILFAST |
1:03.49 |
1:05.28 |
1.79 |
| 6 |
Petersen, Nikole M (16)
|
ILFVFY |
1:06.93 |
1:06.18 |
-0.75 |
| 7 |
Groharing, Madison L (15)
|
ILBTS |
1:05.57 |
1:06.89 |
1.32 |
| 8 |
McMahon, Josephine C (17)
|
ILDCST |
1:04.08 |
1:07.34 |
3.26 |
| 9 |
McClain, Sonya J (15)
|
ILMAC |
1:05.41 |
1:08.12 |
2.71 |
| 10 |
Swiech, Lily S (16)
|
ILBTS |
1:13.68 |
1:08.54 |
-5.14 |
| 11 |
Skrzypek, Nicole D (16)
|
ILDCST |
1:05.95 |
1:08.93 |
2.98 |
| 12 |
Nenonen, Rebecca N (16)
|
ILDCST |
1:07.12 |
1:09.81 |
2.69 |
| 13 |
Goff, Kaitlyn E (15)
|
ILDCST |
1:15.16 |
1:14.29 |
-0.87 |
| 14 |
Fluegel, Kristina K (15)
|
ILFAST |
1:13.77 |
1:16.64 |
2.87 |
| 15 |
Foster, Abigail R (16)
|
ILRMSC |
1:17.95 |
1:20.61 |
2.66 |
| 16 |
Hastings, Samantha M (15)
|
ILDCST |
1:32.09 |
1:30.82 |
-1.27 |