| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Balbi, Diego N (13)
|
FGSAS |
|
1:00.63 |
- |
| 2 |
Goncharov, Makar (12)
|
FGSFTL |
1:03.57 |
1:05.75 |
2.18 |
| 3 |
Armbruster, Tyler K (12)
|
FGPCS |
1:07.49 |
1:07.43 |
-0.06 |
| 4 |
Fermin, Tomas E (12)
|
FGUN |
1:07.69 |
1:08.09 |
0.40 |
| 5 |
Jones, Ronin (12)
|
FGPCS |
1:09.32 |
1:09.76 |
0.44 |
| 6 |
Ferrara, Roman J (12)
|
FGPCS |
1:08.47 |
1:11.80 |
3.33 |
| 7 |
Tortola, Gabriel (12)
|
FGPCS |
1:11.74 |
1:14.36 |
2.62 |
| 8 |
Allahar, Benjamin P (11)
|
FGNPB |
1:12.47 |
1:14.40 |
1.93 |
| 9 |
Carey, Connor I (11)
|
FGSFTL |
1:23.50 |
1:16.19 |
-7.31 |
| 10 |
Gonzalez, Nicolas (12)
|
FGUN |
1:17.32 |
1:17.20 |
-0.12 |
| 11 |
Lin, Christopher T (11)
|
FGPCS |
1:19.91 |
1:18.09 |
-1.82 |
| 12 |
Arfa, Drew T (12)
|
FGPCS |
|
1:25.54 |
- |
| 13 |
Hershey, Vincent P (11)
|
FGSF |
1:35.00 |
1:30.45 |
-4.55 |
| 14 |
Corrales, Renato (11)
|
FGSFTL |
1:38.44 |
1:31.50 |
-6.94 |
| 15 |
Rosenthal, Frederick B (11)
|
FGPCS |
|
1:41.13 |
- |
|
Taus-Nita, Alexander (12)
|
FGPCS |
|
DQ |
- |
|
Fernandez, Eduardo P (12)
|
FGUN |
|
DQ |
- |
|
Gillis, William J (11)
|
FGBRST |
|
NS |
- |