| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Kovalkov, Maksim (9)
|
ILBRRY |
39.26 |
35.93 |
-3.33 |
| 2 |
Krynen, Leo W (10)
|
ILBRRY |
35.89 |
36.59 |
0.70 |
| 3 |
Sadcopen, Hermes Abram B (9)
|
ILJETS |
40.42 |
37.43 |
-2.99 |
| 4 |
Soria-Gonzalez, Rubiel C (10)
|
ILBRRY |
44.49 |
43.36 |
-1.13 |
| 5 |
Wysocki, Landon A (10)
|
ILPALA |
|
44.46 |
- |
| 6 |
Lopez, Ryan A (10)
|
ILJETS |
44.60 |
44.69 |
0.09 |
| 7 |
Kennedy, Finnley M (10)
|
ILTOPS |
46.57 |
45.97 |
-0.60 |
| 8 |
Harvanek, William M (10)
|
ILBRRY |
|
47.06 |
- |
| 9 |
Denman, Josiah J (9)
|
ILBRRY |
|
52.04 |
- |
| 10 |
Kuenster, Cameron C (10)
|
ILTOPS |
54.09 |
52.21 |
-1.88 |
| 11 |
Hall, Gus A (9)
|
ILTOPS |
54.01 |
55.53 |
1.52 |
| 12 |
Ullman, Jude D (9)
|
ILBRRY |
|
56.05 |
- |
| 13 |
Siminoi, Ion (9)
|
ILJETS |
56.00 |
56.48 |
0.48 |
| 14 |
Tiongco, Chase D (10)
|
ILBRRY |
55.08 |
56.78 |
1.70 |
| 15 |
Ortiz, Ethan A (9)
|
ILFVFY |
1:06.50 |
1:03.42 |
-3.08 |
| 16 |
Arka, Aahan (9)
|
ILPALA |
1:05.91 |
1:09.37 |
3.46 |
| 17 |
Porter, Mason H (10)
|
ILTOPS |
1:02.28 |
1:10.41 |
8.13 |
| 18 |
Maisch, Finnegan E (9)
|
ILBRRY |
1:32.54 |
1:26.92 |
-5.62 |
|
Lorig, Benjamin R (10)
|
ILPALA |
1:14.94 |
DQ |
- |
|
Riske, Zachary B (9)
|
ILFY |
58.38 |
DQ |
- |
|
Ali, Rayyan M (10)
|
ILFVFY |
47.94 |
DQ |
- |
|
Konieczny, Jeremy A (10)
|
ILBRRY |
|
DQ |
- |