| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Viele, Olivia G (16)
|
ILSPY |
59.23 |
59.15 |
-0.08 |
| 2 |
Glasnovich, Hailey (17)
|
ILKNCY |
58.93 |
1:00.06 |
1.13 |
| 3 |
Van Berkom, Megan M (18)
|
ILSPY |
59.90 |
1:00.85 |
0.95 |
| 4 |
Uhe, Liesel J (16)
|
ILSPY |
1:02.72 |
1:02.59 |
-0.13 |
| 5 |
McIlvaine-Newsad, Maren (17)
|
ILMCDN |
1:02.77 |
1:03.68 |
0.91 |
| 6 |
DeSalle, Elizabeth G (18)
|
ILSPY |
1:05.46 |
1:03.92 |
-1.54 |
| 7 |
Tate, Cally (15)
|
WCY |
1:06.53 |
1:04.11 |
-2.42 |
| 8 |
Sowle, Sophia G (15)
|
ILSPY |
1:03.96 |
1:05.04 |
1.08 |
| 9 |
Romanotto, Lia B (16)
|
ILSPY |
1:06.66 |
1:05.66 |
-1.00 |
| 10 |
Carlson, Emily A (17)
|
ILSPY |
1:06.36 |
1:05.96 |
-0.40 |
| 11 |
Yockey, Mary C (17)
|
ILSPY |
1:05.59 |
1:06.64 |
1.05 |
| 12 |
McMurry, Olivia L (15)
|
ILHEAT |
1:05.62 |
1:06.74 |
1.12 |
| 13 |
Griffith, Eva G (15)
|
ILYDSC |
1:10.10 |
1:07.31 |
-2.79 |
| 14 |
Wang, Madison (15)
|
ILYDSC |
1:08.59 |
1:07.48 |
-1.11 |
| 15 |
Points, Mia K (16)
|
ILDOCS |
1:11.97 |
1:07.82 |
-4.15 |
| 16 |
McMillan, Kylie M (17)
|
ILSPY |
1:11.36 |
1:08.44 |
-2.92 |
| 17 |
Wells, Madeline P (16)
|
ILMCDN |
1:14.13 |
1:08.85 |
-5.28 |
| 18 |
Collins, Sydney R (16)
|
ILSPY |
1:11.31 |
1:09.23 |
-2.08 |
| 19 |
Carmean, Samantha R (15)
|
ILQFY |
1:08.40 |
1:09.72 |
1.32 |
| 20 |
Medlin, Mae Grace (17)
|
ILDANY |
1:09.43 |
1:09.96 |
0.53 |
| 21 |
Scott, Annika M (15)
|
ILHEAT |
1:06.93 |
1:11.33 |
4.40 |
| 22 |
Fulgenzi, Cecilia L (17)
|
ILSPY |
1:12.75 |
1:11.46 |
-1.29 |
| 23 |
Copp, Kyra E (17)
|
ILSPY |
1:13.97 |
1:12.58 |
-1.39 |
| 24 |
Bruett, Isabelle (16)
|
ILDANY |
1:12.97 |
1:12.99 |
0.02 |
| 25 |
Cavanagh, Isabella R (15)
|
ILSPY |
1:14.55 |
1:14.73 |
0.18 |
| 26 |
Cooper, Mallory (16)
|
WCY |
1:17.08 |
1:16.16 |
-0.92 |
| 27 |
Varvitsiotis, Alexa (17)
|
ZZCANY |
1:17.24 |
1:19.03 |
1.79 |