| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Justin, Joshua J (12)
|
FGPST |
35.54 |
34.24 |
-1.30 |
| 2 |
Ros, Daniel (12)
|
FGPST |
40.75 |
40.33 |
-0.42 |
| 3 |
Villarta, Julian A (12)
|
FGSF |
55.39 |
41.01 |
-14.38 |
| 4 |
Alvarez, Alejandro (12)
|
FGCSSC |
40.98 |
41.92 |
0.94 |
| 5 |
Brezenski, Joshua F (12)
|
FGPST |
42.39 |
42.42 |
0.03 |
| 6 |
Connor, Liam J (12)
|
FGPST |
49.82 |
46.46 |
-3.36 |
| 7 |
Quintero, Ian (12)
|
FGSUN |
|
49.66 |
- |
| 8 |
Loreto, Miguel E (12)
|
FGSDST |
|
50.84 |
- |
| 9 |
Quispe, Steve (12)
|
FGCSSC |
|
52.01 |
- |
| 10 |
Paiz, Josue (12)
|
FGSUN |
|
53.32 |
- |
| 11 |
Donnelly, Kevin A (12)
|
FGCSSC |
|
58.68 |
- |
|
Kocoglu, Miguel S (12)
|
FGCSSC |
46.44 |
DQ |
- |
|
Salguero, Maximiliano (12)
|
FGSOFL |
|
NS |
- |