| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Lowery, Christopher A (12)
|
ILILVY |
1:16.56 |
1:14.44 |
-2.12 |
| 2 |
Svob, Joshua A (12)
|
ILFFSC |
1:15.76 |
1:16.71 |
0.95 |
| 3 |
Mahoney, Jack S (12)
|
ILDDST |
1:19.83 |
1:18.51 |
-1.32 |
| 4 |
Sullens, Lucas J (11)
|
ILSPY |
1:26.84 |
1:25.01 |
-1.83 |
| 5 |
Chambers, Isaac A (12)
|
ILSBD |
1:27.75 |
1:29.28 |
1.53 |
| 6 |
Rajinikanth, Nachiket (12)
|
ILDDST |
1:38.70 |
1:34.50 |
-4.20 |
| 7 |
Braunecker, Aidan J (12)
|
ILHHSC |
|
1:34.63 |
- |
| 8 |
Sparks, Tyler B (11)
|
ILHHSC |
1:28.97 |
1:35.52 |
6.55 |
| 9 |
Wesselman, Matthew T (12)
|
ILSBD |
1:42.77 |
1:39.15 |
-3.62 |
| 10 |
Kersten, Maximilian S (12)
|
ILSBD |
1:43.20 |
1:42.11 |
-1.09 |
| 11 |
Vogel, Caleb D (12)
|
ILFFSC |
|
1:46.89 |
- |
| 12 |
Diener, Rylan A (11)
|
ILSBD |
1:57.16 |
1:48.03 |
-9.13 |
| 13 |
Gold, Henry T (12)
|
ILBNSC |
1:52.78 |
1:48.73 |
-4.05 |
| 14 |
Rodman, Zachary S (11)
|
ILHHSC |
1:45.65 |
1:49.91 |
4.26 |
| 15 |
Scott, Donovan E (11)
|
ILSPY |
2:02.40 |
2:03.88 |
1.48 |
|
Mattson, Boston J (12)
|
ILDDST |
2:04.75 |
DQ |
- |
|
Trapani, Dominic L (12)
|
ILSPY |
1:55.09 |
DQ |
- |
|
Lehman, Rhett J (11)
|
ILSBD |
|
DQ |
- |
|
Lieber, Joseph C (11)
|
ILBASC |
1:46.14 |
DQ |
- |