| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Keller, Brady C (12)
|
ADCPP |
39.54 |
38.59 |
-0.95 |
| 2 |
Killian, Daniel S (12)
|
ADCPP |
41.40 |
42.89 |
1.49 |
| 3 |
Goodwill, Trevor M (12)
|
ADCPP |
43.99 |
44.50 |
0.51 |
| 4 |
Tieckelmann, Connor R (12)
|
ADUN |
42.29 |
45.77 |
3.48 |
| 5 |
Han, Jake J (11)
|
ADCPP |
45.34 |
46.37 |
1.03 |
| 6 |
Simmons, Cooper Z (12)
|
ADCPP |
52.18 |
52.46 |
0.28 |
| 7 |
McCoy, William G (12)
|
ADCPP |
54.22 |
52.99 |
-1.23 |
| 8 |
Ahn, Christopher Y (11)
|
ADCPP |
55.96 |
56.32 |
0.36 |
| 9 |
Nabaoui, Abdullah (11)
|
ADCPP |
1:04.25 |
1:02.84 |
-1.41 |
|
Hughes Robillard, Eric M (11)
|
ADCPP |
1:14.98 |
DQ |
- |