| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Taylor, Andrew J (10)
|
NCGG |
43.43 |
44.10 |
0.67 |
| 2 |
Leckinger, Benjamin T (10)
|
NCNMA |
43.72 |
44.48 |
0.76 |
| 3 |
Ashri, Nikhil (10)
|
NCGG |
49.65 |
48.78 |
-0.87 |
| 4 |
Arnone, Devon P (10)
|
NCNMA |
50.57 |
49.78 |
-0.79 |
| 5 |
Mogray, Joseph M (10)
|
NCCVAC |
47.34 |
50.22 |
2.88 |
| 6 |
Michaud, Phoenix R (10)
|
NCCVAC |
1:12.75 |
57.34 |
-15.41 |
| 7 |
Olguin-Abreu, David F (9)
|
NCCVAC |
|
1:06.55 |
- |
| 8 |
Morales, Joshua A (9)
|
NCGG |
|
1:07.78 |
- |
|
Hareyan, Narek (9)
|
NCCVAC |
|
DQ |
- |
|
Tracy, Peter C (10)
|
NCCVAC |
1:05.89 |
DQ |
- |
|
Blanco Garcia, Guillermo (9)
|
NCGG |
|
DQ |
- |
|
Robinson, Jonah R (9)
|
NCGG |
1:08.22 |
DQ |
- |