| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Gudino, Juanfrancisco F (12)
|
FGGRSC |
33.83 |
33.64 |
-0.19 |
| 2 |
Mansur, Alex K (12)
|
FGBMSC |
30.97 |
33.94 |
2.97 |
| 3 |
Guio, Sebastian (11)
|
FGMWA |
35.18 |
35.68 |
0.50 |
| 4 |
Park, Aiden (12)
|
FGMWA |
45.02 |
36.34 |
-8.68 |
| 5 |
Salas, Rafael R (11)
|
FGMWA |
39.95 |
36.44 |
-3.51 |
| 6 |
Karachun, Matviy (12)
|
FGYSF |
36.61 |
36.55 |
-0.06 |
| 7 |
Amorim, Gabriel A (11)
|
FGBMSC |
35.80 |
37.00 |
1.20 |
| 8 |
Carbonell, Riley R (11)
|
FGMACM |
38.45 |
37.67 |
-0.78 |
| 9 |
Esteves, Mathias (12)
|
FGGRSC |
36.76 |
37.71 |
0.95 |
| 10 |
Selts, Peyton C (12)
|
FGGRSC |
41.69 |
38.00 |
-3.69 |
| 11 |
Ferguson, Dylan C (12)
|
FGMACM |
38.81 |
38.73 |
-0.08 |
| 12 |
Vargas, Diego M (11)
|
FGMWA |
42.66 |
42.27 |
-0.39 |
| 13 |
Sanchez, Cesar A (11)
|
FGPST |
42.46 |
42.38 |
-0.08 |
| 14 |
Wasserman, Jacob A (11)
|
FGYSF |
43.32 |
42.41 |
-0.91 |
| 15 |
Torres-Torres, Axel G (12)
|
FGGRSC |
43.20 |
42.88 |
-0.32 |
| 16 |
Castillo, Axel T (12)
|
FGGRSC |
51.07 |
43.67 |
-7.40 |
| 17 |
Ramos Miret, Carlos (12)
|
FGMACM |
|
44.30 |
- |
| 18 |
Barnett, Cai (12)
|
FGYSF |
42.63 |
44.74 |
2.11 |
| 19 |
Fernandez-Chung, Lucas N (11)
|
FGMACM |
42.31 |
48.67 |
6.36 |
| 20 |
Tapias, Ethan (12)
|
FGGRSC |
47.71 |
49.99 |
2.28 |
| 21 |
Aladin, Jay J (11)
|
FGYSF |
|
57.81 |
- |
|
Antonova, Ivan (12)
|
FGPST |
|
DQ |
- |
|
Malhotra, Rishab (12)
|
FGYSF |
|
DQ |
- |
|
Altamura, Aldo G (11)
|
FGPST |
57.12 |
NS |
- |
|
Padron, Giancarlo (11)
|
FGSF |
|
NS |
- |
|
Gomez, Nohan O (12)
|
FGGRSC |
42.00 |
NS |
- |