| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Politsch, Kade R (12)
|
ILBTS |
1:03.30 |
1:00.85 |
-2.45 |
| 2 |
Johnson, Evan M (12)
|
ILDCST |
1:03.10 |
1:02.51 |
-0.59 |
| 3 |
Kolberg, Kaleb E (12)
|
ILRMSC |
1:07.17 |
1:03.47 |
-3.70 |
| 4 |
Torres, Aidan E (12)
|
ILFVFY |
1:04.30 |
1:03.94 |
-0.36 |
| 5 |
Lippoldt, Owen O (12)
|
ILFVFY |
1:03.73 |
1:04.30 |
0.57 |
| 6 |
Isaacs, Henry J (11)
|
ILMARL |
1:05.04 |
1:05.72 |
0.68 |
| 7 |
Liska, Tyler J (11)
|
ILFVFY |
1:05.92 |
1:05.75 |
-0.17 |
| 8 |
Welt, Conner L (12)
|
ILBTS |
1:10.90 |
1:06.43 |
-4.47 |
| 9 |
Markou, Kosta (12)
|
ILVHST |
|
1:07.01 |
- |
| 10 |
Schamper, Vaughn M (11)
|
ILDCST |
1:14.05 |
1:07.95 |
-6.10 |
| 11 |
Stahl, Brody D (12)
|
ILFVFY |
1:12.70 |
1:11.45 |
-1.25 |
| 12 |
Frump, Eugene B (12)
|
ILSSSC |
1:16.01 |
1:13.46 |
-2.55 |
| 13 |
Owen, Denis P (11)
|
ILMARL |
1:19.22 |
1:17.96 |
-1.26 |
| 14 |
Oland, Luke D (11)
|
ILDCST |
1:15.81 |
1:19.13 |
3.32 |
| 15 |
Schneider, Ethan T (11)
|
ILFAST |
1:36.91 |
1:21.04 |
-15.87 |
|
DeBartolo, Nicholas R (11)
|
ILVHST |
|
DQ |
- |