| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Garbacz, Maxwell A (9)
|
WIBAC |
1:20.64 |
1:16.52 |
-4.12 |
| 2 |
Curran, Brecken E (9)
|
WIMAC |
1:18.08 |
1:17.16 |
-0.92 |
| 3 |
Josephs, Nathan E (9)
|
WIGCY |
1:20.26 |
1:18.75 |
-1.51 |
| 4 |
Bergin, Samuel P (9)
|
WIEBSC |
1:21.91 |
1:21.03 |
-0.88 |
| 5 |
Borchardt, Briggs R (9)
|
WISSTY |
1:20.85 |
1:21.61 |
0.76 |
| 6 |
Hernandez, Benjamin R (9)
|
WISWAT |
1:24.05 |
1:23.34 |
-0.71 |
| 7 |
Vandenbusch, Alexander R (9)
|
WIHSSB |
1:23.58 |
1:24.02 |
0.44 |
| 8 |
Vandenbusch, William M (9)
|
WIHSSB |
1:23.86 |
1:24.58 |
0.72 |
| 9 |
Van Laanen, Barrett J (9)
|
WIASC |
1:27.57 |
1:26.92 |
-0.65 |
| 10 |
Dawson, Charles T (9)
|
WIMAC |
1:27.40 |
1:29.00 |
1.60 |
| 11 |
Bonlender, Kwabena (9)
|
WISSTY |
1:29.41 |
1:29.80 |
0.39 |
| 12 |
Walter, Nolan L (9)
|
WIASC |
1:36.80 |
1:30.20 |
-6.60 |
|
Fox, Ethan J (9)
|
WIWAVE |
1:52.46 |
DQ |
- |