| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Adamo, Joseph J (17)
|
ADUSAM |
51.84 |
52.77 |
0.93 |
| 2 |
Sadchikov, Phillip O (15)
|
ADMDST |
52.44 |
53.50 |
1.06 |
| 3 |
LaForest, Zach D (18)
|
ADBENN |
54.79 |
54.54 |
-0.25 |
| 4 |
Waldenmaier, Alexander Z (17)
|
ADGUY |
57.20 |
54.61 |
-2.59 |
| 5 |
Rossetti, Derek T (16)
|
ADUSAM |
55.84 |
56.79 |
0.95 |
| 6 |
Pece, Logan A (15)
|
ADUN |
57.01 |
57.18 |
0.17 |
| 7 |
Deets, Devin D (16)
|
ADBENN |
58.31 |
1:00.35 |
2.04 |
| 8 |
Klinkner, Grant T (16)
|
ADNHA |
1:03.54 |
1:01.33 |
-2.21 |
| 9 |
Greene, Daniel J (18)
|
ADUSAM |
59.43 |
1:03.46 |
4.03 |
| 10 |
Leanza, Nicholas T (15)
|
ADSCHE |
1:05.95 |
1:04.01 |
-1.94 |
|
Athari, Alexander D (17)
|
ADNHA |
1:03.80 |
NS |
- |