| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Givskov, Daniel (13)
|
FGSFTL |
55.61 |
57.58 |
1.97 |
| 2 |
Brantmeyer, Andrew V (14)
|
FGSFTL |
1:04.23 |
1:05.10 |
0.87 |
| 3 |
Bencie, Brian M (14)
|
FGSFTL |
1:04.81 |
1:06.29 |
1.48 |
| 4 |
Suarez, Mario E (13)
|
FGPCS |
1:08.10 |
1:07.63 |
-0.47 |
| 5 |
Chavez, David D (14)
|
FGUN |
1:08.57 |
1:07.94 |
-0.63 |
| 6 |
Powers-Hammond, Thomas J (13)
|
FGSFTL |
1:09.61 |
1:08.44 |
-1.17 |
| 7 |
Bennett, Jonah T (14)
|
FGPCS |
1:12.77 |
1:10.31 |
-2.46 |
| 8 |
Saffari, Kian (13)
|
FGPCS |
1:07.54 |
1:11.45 |
3.91 |
| 9 |
Frantsevskiy, Egor (13)
|
FGSAS |
1:21.88 |
1:12.73 |
-9.15 |
| 10 |
Escobar, Xander (14)
|
FGPCS |
1:14.20 |
1:14.02 |
-0.18 |
| 11 |
Parajon, Daniel J (13)
|
FGUN |
1:17.96 |
1:17.79 |
-0.17 |
| 12 |
Linares, Mateo (13)
|
FGSFTL |
|
1:23.51 |
- |
| 13 |
Guerrero, Fabio (13)
|
FGUN |
|
1:24.40 |
- |
| 14 |
Perez, Victor A (13)
|
FGRANS |
|
1:27.71 |
- |
| 15 |
Nguyen, Alexander K (13)
|
FGUN |
|
1:29.20 |
- |
| 16 |
Garcia, Roger A (13)
|
FGRANS |
|
1:32.72 |
- |
|
Balbi, Julian A (14)
|
FGSAS |
1:00.33 |
NS |
- |
|
Balbi, Diego N (13)
|
FGSAS |
1:03.50 |
NS |
- |
|
Hayes, David M (14)
|
FGPCS |
1:24.65 |
NS |
- |