| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Liska, Tyler J (10)
|
ILFVFY |
54.52 |
53.41 |
-1.11 |
| 2 |
Trajcev, Kiril C (10)
|
WINBSC |
|
55.98 |
- |
| 3 |
Foster, Nicholas E (10)
|
WISEA |
56.70 |
57.94 |
1.24 |
| 4 |
Cella, Anthony Jr J (9)
|
ILFVFY |
|
59.02 |
- |
| 5 |
Siget, Jacob O (9)
|
WIOCSC |
1:02.87 |
1:02.56 |
-0.31 |
| 6 |
Amundson, Paul D (10)
|
WISEA |
|
1:08.37 |
- |
| 7 |
Allie, Maxwell G (9)
|
WIFAST |
|
1:10.48 |
- |
| 8 |
Bussian, Brayden R (9)
|
WIOCSC |
|
1:12.96 |
- |
| 9 |
Olson, Evan T (9)
|
WISEA |
|
1:18.32 |
- |
|
Gillibrand, Rhys E (9)
|
ILFVFY |
|
DQ |
- |
|
Figueroa, Theodore E (10)
|
WIOCSC |
|
DQ |
- |
|
Schmidt, Jacob R (9)
|
WIOCSC |
|
NS |
- |