| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Davis, Braxton B (10)
|
PVTOLL |
40.02 |
39.65 |
-0.37 |
| 2 |
Williams, Henry R (10)
|
PVMACH |
39.73 |
40.61 |
0.88 |
| 3 |
Scherr, Aiden W (10)
|
PVTOLL |
40.54 |
DQ |
- |
| 4 |
Dalton, William J (10)
|
PVMACH |
41.94 |
DQ |
- |
| 5 |
Nguyen, Blake R (10)
|
PVMACH |
42.53 |
45.50 |
2.97 |
| 6 |
Robelen, Theodore J (10)
|
PVTOLL |
44.36 |
46.57 |
2.21 |
| 7 |
Koko, Josiah C (10)
|
PVTOLL |
43.39 |
48.21 |
4.82 |
| 8 |
Dawson, John T (10)
|
PVMACH |
44.06 |
49.83 |
5.77 |
| 9 |
Ng, Andrew S (10)
|
PVMACH |
46.09 |
50.27 |
4.18 |
| 10 |
Papoian, Daniel (10)
|
PVTOLL |
48.71 |
50.47 |
1.76 |
| 11 |
Branham, Conor J (10)
|
PVMACH |
53.98 |
59.07 |
5.09 |
| 12 |
Sigrist, Gabriel S (10)
|
PVTOLL |
1:13.09 |
1:01.44 |
-11.65 |
| 13 |
Aalemansour, Daniel B (10)
|
PVTOLL |
|
DQ |
- |
| 14 |
Makepeace, Archer W (10)
|
PVTOLL |
|
1:11.07 |
- |