| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Harman, Evan M (10)
|
FGFAST |
38.53 |
37.85 |
-0.68 |
| 2 |
Silva, John Brendon O (10)
|
FGWASC |
37.68 |
38.81 |
1.13 |
| 3 |
White, Oscar W (10)
|
FGHAFL |
|
40.09 |
- |
| 4 |
Domokos-Murphy, William R (8)
|
FGSAS |
41.03 |
40.34 |
-0.69 |
| 5 |
Amorim, Gabriel A (9)
|
FGBMSC |
1:01.83 |
41.30 |
-20.53 |
| 6 |
Fernandez-Chung, Lucas (8)
|
FGASC |
46.61 |
41.86 |
-4.75 |
| 7 |
Livsey, Brooks M (10)
|
FGYSF |
46.34 |
42.43 |
-3.91 |
| 8 |
Lembit, Rocco M (9)
|
FGSAS |
43.24 |
42.54 |
-0.70 |
| 9 |
Arias, Adrian (10)
|
FGASC |
1:14.87 |
45.92 |
-28.95 |
| 10 |
Diaz, Lorenzo (10)
|
FGASC |
|
47.20 |
- |
| 11 |
Zakirov, Arthur (10)
|
FGWASC |
50.02 |
48.52 |
-1.50 |
| 12 |
Sabocik, Aiden C (8)
|
FGLLL |
51.16 |
49.91 |
-1.25 |
| 13 |
Cote, Jordan W (10)
|
FGWASC |
50.73 |
49.94 |
-0.79 |
| 14 |
Karaj, Albert E (8)
|
FGWASC |
|
58.93 |
- |
| 15 |
Perez, Joaquin E (10)
|
FGFAST |
1:05.58 |
1:01.46 |
-4.12 |
| 16 |
Sherman, Jacob L (9)
|
FGECAC |
|
1:06.12 |
- |
| 17 |
Thurab Boodram, Peter (9)
|
FGLLL |
|
1:14.72 |
- |
| 18 |
Donoso, Ivan (10)
|
FGHAFL |
|
1:18.53 |
- |
|
Raphael, Christian D (9)
|
FGLLL |
|
DQ |
- |
|
Perez-Escobar, Sebastian (9)
|
FGYSF |
51.48 |
DQ |
- |
|
Vega, Braison (7)
|
FGASC |
|
DQ |
- |
|
Cruz, Juan Carlos (10)
|
FGASC |
52.79 |
DQ |
- |
|
Burgess, Brayden (10)
|
FGLLL |
1:20.27 |
NS |
- |
|
Gonzalez, Felix A (10)
|
FGYSF |
44.57 |
NS |
- |