| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Maere, Skylar T (10)
|
ILMARL |
1:10.14 |
1:15.70 |
5.56 |
| 2 |
Schrader, Ethan R (9)
|
ILDLTA |
1:17.52 |
1:19.68 |
2.16 |
| 3 |
Walliker, Logan A (10)
|
ILPAWW |
1:26.23 |
1:21.92 |
-4.31 |
| 4 |
Carr, Isaac S (10)
|
ILHEAT |
1:20.02 |
1:22.23 |
2.21 |
| 5 |
Dornon, August V (10)
|
ILDDST |
1:28.45 |
1:22.96 |
-5.49 |
| 6 |
Gilmore, Nicholas H (10)
|
ILSPY |
1:21.25 |
1:23.00 |
1.75 |
| 7 |
Porritt, Elijah S (9)
|
ILPAWW |
|
1:24.75 |
- |
| 8 |
Mizeur, Rowan (9)
|
ILSPY |
|
1:29.06 |
- |
| 9 |
Mahorney, William J (9)
|
ILSPY |
1:28.91 |
1:29.60 |
0.69 |
| 10 |
Boerke, Landon K (10)
|
ILPAWW |
1:32.19 |
1:30.43 |
-1.76 |
| 11 |
Evans, Jack W (9)
|
ILSPY |
|
1:35.55 |
- |
| 12 |
Macasaet, Josh A (10)
|
ILDLTA |
1:50.25 |
1:38.21 |
-12.04 |
| 13 |
Qu, Richard (10)
|
ILDDST |
1:38.47 |
1:46.00 |
7.53 |
| 14 |
Stumpenhorst, Kaleb P (9)
|
ILDLTA |
|
1:46.07 |
- |
| 15 |
Rauther, Hamzah (9)
|
ILHEAT |
1:46.52 |
1:48.26 |
1.74 |
| 16 |
Gilmore, Sullivan (9)
|
ILSPY |
|
1:49.97 |
- |
| 17 |
Rackauskas, Paxton G (10)
|
ILDDST |
1:47.81 |
1:50.66 |
2.85 |
| 18 |
Reckamp, Troy U (9)
|
ILMARL |
1:52.47 |
1:57.43 |
4.96 |
| 19 |
Smith, Jason M (10)
|
ILBNSC |
|
1:59.05 |
- |
| 20 |
Edwards, Calvin L (10)
|
ILFPWW |
|
1:59.36 |
- |
| 21 |
Pyle, Wade P (9)
|
ILBNSC |
2:21.68 |
2:06.57 |
-15.11 |
|
Bigler, Marshall G (9)
|
ILHEAT |
|
DQ |
- |
|
Wen, Jeffrey L (10)
|
ILDDST |
1:37.24 |
NS |
- |