| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Manak, Helen W (8)
|
ILBRRY |
15.90 |
15.21 |
-0.69 |
| 2 |
Torres, Sofia A (8)
|
ILFVFY |
18.31 |
16.98 |
-1.33 |
| 3 |
Skubiak, Vera A (8)
|
ILFVFY |
|
18.05 |
- |
| 4 |
Turschman, Lyla J (8)
|
ILPALA |
19.29 |
18.31 |
-0.98 |
| 5 |
Ross, Izabelle T (8)
|
ILFVFY |
23.34 |
18.74 |
-4.60 |
| 6 |
Dryden, Aubrey B (8)
|
ILBRRY |
|
19.24 |
- |
| 7 |
Calvert, Alle M (8)
|
ILFVFY |
22.38 |
19.42 |
-2.96 |
| 8 |
Ziegler, Reese D (7)
|
ILFVFY |
18.97 |
19.47 |
0.50 |
| 9 |
VanWItzenburg, Lauren A (7)
|
ILBRRY |
21.91 |
20.05 |
-1.86 |
| 10 |
Harting, Allison L (8)
|
ILFVFY |
27.73 |
20.75 |
-6.98 |
| 10 |
King, Josephine A (8)
|
ILFVFY |
23.13 |
20.75 |
-2.38 |
| 12 |
Yarberry, Lillan R (7)
|
ILPALA |
25.13 |
21.39 |
-3.74 |
| 13 |
Bozzacco, Seraphina R (8)
|
ILNAPY |
|
23.52 |
- |
| 14 |
Crnich, Clara L (7)
|
ILJETS |
27.48 |
24.89 |
-2.59 |
| 15 |
Villa, Jacqueline G (8)
|
ILFVFY |
25.00 |
24.95 |
-0.05 |
| 16 |
Goddard, Niamh (7)
|
ILNAPY |
|
25.11 |
- |
| 16 |
Robinson, Diamond (8)
|
ILJETS |
|
25.11 |
- |
| 18 |
Slavens, Madalyn M (8)
|
ILFVFY |
|
25.80 |
- |
| 19 |
Lund, Bernice D (7)
|
ILBRRY |
23.11 |
26.43 |
3.32 |
| 20 |
Guthrie, Taylor L (7)
|
ILPALA |
29.36 |
28.18 |
-1.18 |
|
Bianchetta, Shelby R (8)
|
ILJETS |
27.24 |
DQ |
- |