| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Truong, Devin Q (17)
|
PVNCAP |
51.30 |
53.58 |
2.28 |
| 1 |
Vahiny, Jeffrey (16)
|
PVNCAP |
53.10 |
53.58 |
0.48 |
| 3 |
Zimmerman, Abraham J (17)
|
PVNCAP |
54.43 |
53.97 |
-0.46 |
| 4 |
Wu, Timothy Y (17)
|
PVNCAP |
52.71 |
54.04 |
1.33 |
| 5 |
Bagal, Nithin V (16)
|
PVNCAP |
55.28 |
56.30 |
1.02 |
| 6 |
George, Nathan D (37)
|
PVNCAP |
56.71 |
56.91 |
0.20 |
| 7 |
Mullen, William E (15)
|
PVNCAP |
58.07 |
59.28 |
1.21 |
| 8 |
McConagha, Cameron J (16)
|
PVNCAP |
56.28 |
1:00.11 |
3.83 |
| 9 |
Holassie, Richard J (15)
|
PVUMAC |
1:04.04 |
1:02.67 |
-1.37 |
|
Capobianco, Matthew J (17)
|
PVNCAP |
56.45 |
NS |
- |
|
Truong, Darius D (14)
|
PVNCAP |
53.96 |
NS |
- |