| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Palacios, Max (13)
|
ILDCST |
29.85 |
28.02 |
-1.83 |
| 2 |
Welch, Ethan J (14)
|
ILDCST |
37.98 |
30.34 |
-7.64 |
| 3 |
Beard, Corey R (11)
|
ILBRRY |
35.88 |
35.65 |
-0.23 |
| 4 |
Borg, Gerald A (14)
|
ILPALA |
41.02 |
36.01 |
-5.01 |
| 5 |
Uhlenhopp, Mattson H (12)
|
ILFVFY |
42.14 |
36.03 |
-6.11 |
| 6 |
Krynen, Leo W (10)
|
ILBRRY |
36.22 |
37.04 |
0.82 |
| 7 |
Hanson, Victor L (12)
|
ILBRRY |
41.25 |
39.87 |
-1.38 |
| 8 |
LaBarre, Lincoln B (9)
|
ILBRRY |
44.48 |
40.94 |
-3.54 |
| 9 |
Tamasauskas, Nicolas (11)
|
ILBRRY |
39.62 |
41.77 |
2.15 |
| 10 |
Flint, Leo N (11)
|
ILBRRY |
45.96 |
45.02 |
-0.94 |
| 11 |
Decker, Cameron A (12)
|
ILBRRY |
55.21 |
48.86 |
-6.35 |
| 12 |
Meacham, James P (12)
|
ILBRRY |
59.19 |
52.75 |
-6.44 |
| 13 |
Stephenson, Zach N (14)
|
ILNAPY |
|
56.42 |
- |
| 14 |
Dao, Ben T (8)
|
ILFVFY |
|
57.34 |
- |
| 15 |
Ortiz, Ethan A (9)
|
ILFVFY |
|
1:06.50 |
- |
| 16 |
Ramos, Leonardo * (6)
|
ILFVFY |
1:22.33 |
1:12.79 |
-9.54 |
|
Vento, Nicholas J (9)
|
ILFVFY |
|
DQ |
- |
|
Mestan, Ben M (14)
|
ILJETS |
33.84 |
NS |
- |
|
Dye, Caeden M (12)
|
ILBRRY |
40.63 |
NS |
- |