| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Towne, Chase W (9)
|
NCWNCY |
41.87 |
42.23 |
0.36 |
| 2 |
Ouyang, Bryan J (9)
|
SCYSSC |
48.04 |
44.95 |
-3.09 |
| 3 |
Wilson, Charles T (10)
|
SCYSSC |
39.16 |
45.48 |
6.32 |
| 4 |
Lanier, John I (9)
|
NCWNCY |
53.73 |
51.51 |
-2.22 |
| 5 |
Halldin, Benjamin A (9)
|
NCWNCY |
53.74 |
DQ |
- |
| 6 |
Fabian Rios, Patrizio (8)
|
SCAAYM |
57.50 |
59.12 |
1.62 |
| 7 |
Campbell, Alexander S (8)
|
NCWNCY |
|
DQ |
- |
| 8 |
Smith, Myer C (9)
|
SCAAYM |
|
1:00.81 |
- |
| 9 |
Clarke, Maximus * (9)
|
SCAAYM |
|
DQ |
- |
| 10 |
Greenwald, Colin L (9)
|
NCWNCY |
|
1:03.47 |
- |
| 11 |
Lingle, Oliver T (8)
|
NCWNCY |
|
1:07.90 |
- |
| 12 |
Ponder, Briar R (10)
|
NCWNCY |
|
1:14.58 |
- |
| 13 |
Phillips, Landon J (9)
|
NCWNCY |
|
DQ |
- |
|
Terkelsen, Andrew R (9)
|
NCWNCY |
1:05.23 |
NS |
- |