| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Sfirnaciuc, Nicholas J (10)
|
ILHSC |
1:19.89 |
1:18.37 |
-1.52 |
| 2 |
Pluskwa, Connor J (10)
|
ILSCST |
1:19.04 |
1:20.02 |
0.98 |
| 3 |
Zhao, Sean (10)
|
ILPPD |
1:35.05 |
1:21.51 |
-13.54 |
| 4 |
Miclea, Eric N (10)
|
ILSWAQ |
1:28.79 |
1:23.75 |
-5.04 |
| 5 |
Rybaski, Hayden C (10)
|
ILSCST |
1:29.68 |
1:24.79 |
-4.89 |
| 6 |
Postovalov, Lucas A (10)
|
ILBRRY |
1:30.85 |
1:27.20 |
-3.65 |
| 7 |
Roessler, Theodore B (10)
|
ILFMC |
1:34.13 |
1:29.35 |
-4.78 |
| 8 |
Mousty, Caleb M (10)
|
ILPAWW |
1:29.66 |
1:29.39 |
-0.27 |
| 9 |
McKillop, Jacob E (10)
|
ILFMC |
1:36.81 |
1:30.03 |
-6.78 |
| 10 |
O'Donnell, Grant M (9)
|
ILWILD |
1:31.62 |
1:31.54 |
-0.08 |
| 11 |
Sliz, Adrian G (10)
|
ILFMC |
1:37.89 |
1:32.05 |
-5.84 |
| 12 |
Robinson, Grant A (10)
|
ILCWAC |
1:31.13 |
1:32.48 |
1.35 |
| 13 |
Burk, Zachary B (10)
|
ILDLTA |
1:34.95 |
1:35.73 |
0.78 |
| 14 |
Merrick, Archer (10)
|
ILCWAC |
1:36.63 |
1:37.32 |
0.69 |
| 15 |
Papanicholas, Luke J (10)
|
ILGSC |
1:37.52 |
1:44.33 |
6.81 |