| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Cason, Syeed L (8)
|
CATRA |
42.44 |
41.55 |
-0.89 |
| 2 |
McCallister, Prince K (8)
|
MDMETR |
47.93 |
48.16 |
0.23 |
| 3 |
Diez, Luca (8)
|
NJMDST |
48.55 |
49.37 |
0.82 |
| 4 |
Golinski, Levi G (7)
|
NCGCY |
57.10 |
53.20 |
-3.90 |
| 5 |
Anderson, Mason W (8)
|
MIRAZ |
52.45 |
53.96 |
1.51 |
| 6 |
Harris, Anthony P (8)
|
MIDRST |
55.31 |
55.22 |
-0.09 |
| 7 |
Nguyen, Ayden T (8)
|
TBSC |
58.20 |
57.34 |
-0.86 |
| 8 |
Davis -mctaw, Hayden L (6)
|
MIHTSC |
1:13.44 |
57.43 |
-16.01 |
| 9 |
Holmes, Mason (7)
|
ILCPD |
|
1:22.01 |
- |
|
Johnson, Jason G (6)
|
PVDMV |
|
DQ |
- |
|
Austin, Christian G (8)
|
PVDMV |
|
NS |
- |