| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Padilla, Logan (10)
|
PVDCPR |
48.70 |
44.83 |
-3.87 |
| 2 |
Catanzano, Max A (10)
|
PVDCPR |
50.47 |
47.70 |
-2.77 |
| 3 |
Mason, Christopher (10)
|
PVDCPR |
55.53 |
54.02 |
-1.51 |
| 4 |
Joseph, Sulaiman B (9)
|
PVDCPR |
59.26 |
54.70 |
-4.56 |
| 5 |
Hunt, James J (10)
|
PVDCPR |
53.89 |
57.32 |
3.43 |
| 6 |
Smith, Elijah J (9)
|
PVDCPR |
|
59.19 |
- |
| 7 |
Donnelly, Liam J (9)
|
PVDCPR |
|
1:01.19 |
- |
| 8 |
Ferguson, Kieran R (10)
|
PVDCPR |
1:04.89 |
1:09.60 |
4.71 |
|
Jordan, Tristan D (9)
|
PVDCPR |
|
DQ |
- |
|
Lam, Tristan C (9)
|
PVDCPR |
|
DQ |
- |
|
Lassiter, Matthew J (10)
|
PVDCPR |
|
DQ |
- |
|
Shanks, Maurice L (9)
|
PVDCPR |
|
DQ |
- |
|
Velasquez, Sebastian G (10)
|
PVDCPR |
|
DQ |
- |
|
Sade, Owen H (9)
|
PVDCPR |
|
NS |
- |