| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Blanco, David A (16)
|
FGCSSC |
1:06.49 |
1:05.70 |
-0.79 |
| 2 |
Oliveira, Daniel (17)
|
FGPOMP |
1:12.78 |
1:08.64 |
-4.14 |
| 3 |
Rosas, Juan A (15)
|
FGYSF |
1:10.98 |
1:08.94 |
-2.04 |
| 4 |
Garriga-Dominguez, Carlos (17)
|
FGPOMP |
1:21.33 |
1:10.24 |
-11.09 |
| 5 |
Hategan, Darien (15)
|
FGYSF |
1:14.80 |
1:11.07 |
-3.73 |
| 6 |
Christakis, Nicolas (16)
|
FGCCPR |
1:12.05 |
1:11.30 |
-0.75 |
| 7 |
Sierra, Sebastian J (16)
|
FGTSA |
1:14.93 |
1:12.49 |
-2.44 |
| 8 |
Himiob, Santiago (18)
|
FGHAT |
1:03.24 |
1:12.82 |
9.58 |
| 9 |
Hamilton, Ian D (15)
|
FGAZFL |
1:19.66 |
1:13.46 |
-6.20 |
| 10 |
Franzino, Patrick J (15)
|
FGCSSC |
1:11.07 |
1:13.61 |
2.54 |
| 11 |
Gonzalez, Oscar J (16)
|
FGSF |
1:21.78 |
1:14.28 |
-7.50 |
| 12 |
Christakis, Christopher (15)
|
FGCCPR |
1:13.52 |
1:14.71 |
1.19 |
| 13 |
Chaimowicz, Nicholas V (15)
|
FGCCPR |
1:18.05 |
1:15.08 |
-2.97 |
| 14 |
Squartino, Salvatore (16)
|
FGSF |
1:37.12 |
1:25.62 |
-11.50 |
| 15 |
Vazquez, Carlos A (15)
|
FGPOMP |
|
1:33.89 |
- |
|
Londono, Javier A (18)
|
FGCSSC |
1:17.80 |
NS |
- |
|
Oliver, Kyle C (16)
|
FGCSSC |
1:16.57 |
NS |
- |
|
Wolfe, Patrick B (17)
|
FGPST |
1:13.61 |
NS |
- |