| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Nordheim, Gregory A (12)
|
FGSAS |
1:00.57 |
59.48 |
-1.09 |
| 2 |
Balbi, Julian A (12)
|
FGSAS |
1:01.03 |
1:02.58 |
1.55 |
| 3 |
Smith, Lucca S (11)
|
FGYSF |
1:08.02 |
1:09.34 |
1.32 |
| 4 |
Badics, Cooper C (11)
|
FGSAS |
1:07.75 |
1:10.83 |
3.08 |
| 5 |
Zelikov, Max E (11)
|
FGSAS |
|
1:10.89 |
- |
| 6 |
Lu, Siyuan S (11)
|
FGYSF |
1:12.67 |
1:11.15 |
-1.52 |
| 7 |
Livsey, Grant (12)
|
FGYSF |
1:23.93 |
1:13.35 |
-10.58 |
| 8 |
Frantsevskiy, Egor (11)
|
FGSAS |
1:17.70 |
1:17.98 |
0.28 |
| 9 |
Stillings, Nicholas R (12)
|
FGBMSC |
1:17.34 |
1:18.49 |
1.15 |
| 10 |
Vega, Brandon (12)
|
FGASC |
|
1:29.36 |
- |
| 11 |
Buonocore, Luca (12)
|
FGASC |
|
1:30.60 |
- |
| 12 |
O'Leary, Michael P (11)
|
FGFAST |
1:28.38 |
1:32.27 |
3.89 |
| 13 |
Green, Elliott (12)
|
FGHAFL |
1:52.55 |
1:42.37 |
-10.18 |
| 14 |
Hayman, Christopher J (12)
|
FGHAFL |
1:47.96 |
1:42.64 |
-5.32 |
|
Balbi, Diego N (11)
|
FGSAS |
1:06.74 |
NS |
- |
|
Herrera, Alejandro (11)
|
FGYSF |
1:13.61 |
NS |
- |