| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Salas, Daniel A (16)
|
FGMWA |
59.97 |
55.19 |
-4.78 |
| 2 |
Rendon Sequera, Wisthon A (15)
|
FGMWA |
59.12 |
57.37 |
-1.75 |
| 3 |
Gomez, Santiago A (17)
|
FGMWA |
58.92 |
58.58 |
-0.34 |
| 4 |
Alfonzo, Jose R (15)
|
FGMWA |
59.89 |
1:03.67 |
3.78 |
| 5 |
Gomez, Rodrigo A (17)
|
FGMWA |
1:09.48 |
1:03.87 |
-5.61 |
| 6 |
Ros, Daniel (15)
|
FGPST |
1:07.50 |
1:06.68 |
-0.82 |
| 7 |
Hategan, Darien O (17)
|
FGYSF |
1:09.02 |
1:07.61 |
-1.41 |
| 8 |
Saballos, Orlando J (16)
|
FGPST |
1:09.64 |
1:07.91 |
-1.73 |
| 9 |
Perez, Juan E (17)
|
FGMWA |
|
1:09.20 |
- |
| 10 |
Garrido, Carlos A (15)
|
FGYSF |
1:11.71 |
1:14.00 |
2.29 |
| 11 |
Duarte, Sebastian (15)
|
FGYSF |
1:18.05 |
1:15.77 |
-2.28 |
| 12 |
Perez, Alejandro F (16)
|
FGUN-0 |
1:20.81 |
1:18.77 |
-2.04 |
| 13 |
Zuniga, Gabriel A (15)
|
FGMWA |
1:28.45 |
1:28.29 |
-0.16 |
|
Passarini, Raul E (18)
|
FGYSF |
1:19.24 |
NS |
- |
|
DePawlikowski, Boleck (23)
|
FGMACM |
50.13 |
NS |
- |
|
Lopez, Sebastian A (17)
|
FGMWA |
1:03.26 |
NS |
- |
|
Jaimes, Andres E (15)
|
FGMACM |
1:09.11 |
NS |
- |