| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Miller, Kelby H (12)
|
MIMYST |
44.81 |
42.05 |
-2.76 |
| 2 |
Scott, Hayden (12)
|
MIYCAD |
46.91 |
44.90 |
-2.01 |
| 3 |
Parvel, James A (12)
|
MIGTBY |
52.28 |
46.77 |
-5.51 |
| 4 |
Palacpac, Jonathan R (11)
|
MIGTBY |
46.37 |
46.94 |
0.57 |
| 5 |
Hudson, Arren A (11)
|
MIGTBY |
52.43 |
51.08 |
-1.35 |
| 6 |
Cundiff, Bryce E (11)
|
MIGTBY |
50.98 |
52.15 |
1.17 |
| 7 |
Martin, Colin R (11)
|
MIGTBY |
|
57.21 |
- |
| 8 |
Bauer, Liam M (11)
|
MIGTBY |
|
57.36 |
- |
| 9 |
Rutterbush, Jared (12)
|
MIYCAD |
1:10.29 |
1:04.62 |
-5.67 |
|
Anderson, Ian C (11)
|
MIGTBY |
|
DQ |
- |
|
Rutkoski, Alexander G (11)
|
MIGTBY |
|
DQ |
- |