| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Zhang, Wuche (10)
|
NCGCY |
45.18 |
45.09 |
-0.09 |
| 2 |
Tilley, Charles G (10)
|
NCSGSA |
45.94 |
45.61 |
-0.33 |
| 3 |
Cooper, Henry D (10)
|
NCGCY |
48.35 |
47.82 |
-0.53 |
| 4 |
Simmons, Roman S (9)
|
NCGCY |
48.88 |
47.96 |
-0.92 |
| 5 |
Austria, Elijah S (9)
|
NCGCY |
52.39 |
49.07 |
-3.32 |
| 6 |
He, Bryan T (9)
|
NCGCY |
51.66 |
51.87 |
0.21 |
| 7 |
Xie, Edward C (9)
|
NCGCY |
58.99 |
53.52 |
-5.47 |
| 8 |
Morris, Cameron A (9)
|
NCGCY |
1:06.12 |
1:02.89 |
-3.23 |
| 9 |
Jenkins, Jack D (8)
|
NCGCY |
|
1:02.97 |
- |
|
Jia, George (10)
|
NCGCY |
1:09.09 |
DQ |
- |
|
Lennon, Jr, Darrell L (9)
|
NCGCY |
|
DQ |
- |
|
Zhang, Ximin S (9)
|
NCGCY |
1:12.35 |
DQ |
- |