| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Antonuk, Charlie (10)
|
WIRSC |
43.77 |
40.49 |
-3.28 |
| 2 |
Breining, Benjamin G (10)
|
WIBRYS |
|
46.48 |
- |
| 3 |
Short, Cass (9)
|
WICVY |
|
47.97 |
- |
| 4 |
Mosher, Mason (10)
|
WICVY |
|
48.89 |
- |
| 5 |
Denis, Paul (9)
|
WIRSC |
|
53.29 |
- |
| 6 |
Arrowood, Drayke (10)
|
WIRSC |
1:02.45 |
53.99 |
-8.46 |
| 7 |
Mattson, William (10)
|
WICVY |
1:11.27 |
54.33 |
-16.94 |
| 8 |
Radcliffe, James (10)
|
WICVY |
|
55.99 |
- |
| 9 |
Anderson, Anfin (9)
|
WICVY |
|
57.22 |
- |
| 10 |
O'Malley, Kellen J (9)
|
WIRSC |
|
1:03.37 |
- |
| 11 |
Rogge, Izak (10)
|
WICVY |
|
1:05.26 |
- |
| 12 |
Anderson, Ayden (10)
|
WICVY |
|
1:16.26 |
- |
|
Melbye, Ashton X (10)
|
WIBRYS |
|
DQ |
- |
|
Osterman, Grayson (9)
|
WIRSC |
|
DQ |
- |
|
Cernohous, Andin B (9)
|
MNTCCS |
|
DQ |
- |