| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Henrikson-Brandt, Kai (10)
|
PVDCPR |
40.52 |
40.19 |
-0.33 |
| 2 |
Diamond-Berman, Raphael B (10)
|
PVDCPR |
|
46.05 |
- |
| 3 |
Fleming, Colton S (10)
|
PVDCPR |
50.33 |
48.08 |
-2.25 |
| 4 |
Faraday, Rohan M (9)
|
PVDCPR |
57.70 |
50.93 |
-6.77 |
| 5 |
Dorsett, Micah D (10)
|
PVERSC |
57.94 |
52.32 |
-5.62 |
| 6 |
Laskowski, Malcolm E (9)
|
PVDCPR |
57.85 |
52.97 |
-4.88 |
| 7 |
Campos, Santiago A (10)
|
PVDCPR |
1:04.35 |
56.62 |
-7.73 |
| 8 |
Ioffe, Yannik G (9)
|
PVDCPR |
1:04.73 |
57.31 |
-7.42 |
| 9 |
Degraffinreaidt, Darian D (9)
|
PVDCPR |
1:09.97 |
57.85 |
-12.12 |
| 10 |
Iacoviello, Filippo F (10)
|
PVDCPR |
1:15.48 |
1:08.99 |
-6.49 |
| 11 |
Patel, Sahan K (9)
|
PVDCPR |
|
1:09.73 |
- |
|
Pattison, Oliver I (10)
|
PVDCPR |
|
DQ |
- |
|
Reeves, Elijah W (9)
|
PVDCPR |
|
DQ |
- |
|
Thurman, Jack D (10)
|
PVDCPR |
|
DQ |
- |
|
Evering, Kirk E (9)
|
PVERSC |
|
DQ |
- |