| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Adams, Denny L (12)
|
BDSWAT |
29.17 |
28.78 |
-0.39 |
| 2 |
Stamer, Ryan L (12)
|
AZFAST |
30.64 |
30.62 |
-0.02 |
| 3 |
Patron Romero, Ayrton (12)
|
ANVC |
31.34 |
31.06 |
-0.28 |
| 4 |
Soto Cervantes, Jose Antonio (12)
|
CENA |
32.49 |
31.87 |
-0.62 |
| 5 |
Shapiro, Daniel R (12)
|
AZRAYS |
33.75 |
32.13 |
-1.62 |
| 6 |
Cindrich, Reese A (11)
|
AZFORD |
34.51 |
33.91 |
-0.60 |
| 7 |
Velazquez Coronado, Daniel (11)
|
DELS |
32.71 |
34.02 |
1.31 |
| 8 |
Litz, Andrew P (12)
|
AZFAST |
34.05 |
34.49 |
0.44 |
| 9 |
Ruiz Coronado, Maximiliano (12)
|
TIB |
35.03 |
34.68 |
-0.35 |
| 10 |
Avila, Alvaro A (11)
|
BDRAST |
34.25 |
34.83 |
0.58 |
| 11 |
Fosdick, Mason R (12)
|
AZRAYS |
36.55 |
34.87 |
-1.68 |
| 12 |
Nielsen Romero, Alexander (11)
|
ALBA |
35.93 |
35.57 |
-0.36 |
| 13 |
Cindrich, Levi C (11)
|
AZFORD |
36.10 |
35.97 |
-0.13 |