| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Fermin, Tomas E (12)
|
FGUNA2 |
58.35 |
1:00.22 |
1.87 |
| 2 |
Roca, Peter M (12)
|
FGEA |
1:00.92 |
1:01.70 |
0.78 |
| 3 |
McPeek, Ethan J (12)
|
FGSOFL |
1:03.55 |
1:02.70 |
-0.85 |
| 4 |
Lesentier, Liam M (11)
|
FGUNA1 |
1:04.13 |
1:04.88 |
0.75 |
| 5 |
Barreto, Joshua (11)
|
FGOSC |
1:06.43 |
1:05.13 |
-1.30 |
| 6 |
Charnou, Maksim (11)
|
FGNMST |
1:05.44 |
1:05.43 |
-0.01 |
| 7 |
Mazzi, Alessio F (12)
|
FGSOFL |
1:05.29 |
1:05.97 |
0.68 |
| 8 |
Amores, Jaden D (11)
|
FGSOFL |
1:10.77 |
1:09.09 |
-1.68 |
| 9 |
Pelaez, Nicholas (12)
|
FGSOFL |
1:09.45 |
1:09.45 |
0.00 |
| 10 |
McVeigh, Matt R (11)
|
FGSOFL |
1:13.40 |
1:16.03 |
2.63 |
| 11 |
Fernandez, Eduardo P (12)
|
FGUNA2 |
1:17.67 |
1:18.67 |
1.00 |
| 12 |
Pereira-Ramallo, Thomas (12)
|
FGSOFL |
1:18.37 |
1:19.72 |
1.35 |
| 13 |
Nones, Isaac (11)
|
FGSOFL |
1:34.34 |
1:26.18 |
-8.16 |
| 14 |
Suarez, Javier (11)
|
FGMACM |
|
1:29.09 |
- |
| 15 |
Diener, Seth D (11)
|
FGNMST |
1:37.99 |
1:31.22 |
-6.77 |
| 16 |
Chuecos, Andres D (11)
|
FGMACM |
|
1:32.09 |
- |
|
Abelson, Thomas J (11)
|
FGEA |
1:50.51 |
NS |
- |