| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Jerome, Christian V (14)
|
ADUSAM |
52.22 |
55.16 |
2.94 |
| 2 |
Hellenthal, Thomas M (14)
|
ADCLIN |
56.55 |
57.22 |
0.67 |
| 3 |
Steele, Carter A (15)
|
ADALBS |
57.76 |
1:01.30 |
3.54 |
| 4 |
Zhang, Alexander W (15)
|
ADSCHE |
1:00.25 |
1:02.55 |
2.30 |
| 5 |
Splendido, Luke J (15)
|
ADALBS |
1:03.55 |
1:04.90 |
1.35 |
| 6 |
Zeliph, Thomas J (15)
|
ADALBS |
1:01.93 |
1:05.25 |
3.32 |
| 7 |
Sumner, James W (15)
|
ADALBS |
1:10.00 |
1:08.26 |
-1.74 |
| 8 |
O'Connell, Brodie R (15)
|
ADALBS |
1:05.09 |
1:10.04 |
4.95 |
| 9 |
LaFountain, Jackson P (15)
|
ADALBS |
1:11.21 |
1:13.99 |
2.78 |
| 10 |
Priestley, Benjamin G (15)
|
ADALBS |
|
1:19.78 |
- |
|
Rosen, Samuel M (15)
|
ADALBS |
1:02.36 |
NS |
- |
|
Staudinger, Samuel P (15)
|
ADALBS |
56.32 |
NS |
- |