| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Washburn, Robert T (9)
|
PVNCAP |
40.30 |
43.04 |
2.74 |
| 2 |
Hunter, Eli T (10)
|
PVNCAP |
43.08 |
43.62 |
0.54 |
| 3 |
Bloomquist, Mason D (9)
|
PVPAC |
|
48.90 |
- |
| 4 |
DaRif, Braxton A (10)
|
PVPAC |
51.83 |
49.53 |
-2.30 |
| 5 |
Kaiser, Emmett R (8)
|
PVASA |
57.76 |
49.74 |
-8.02 |
| 6 |
Karlsen, Hans E (8)
|
PVASA |
57.56 |
51.36 |
-6.20 |
| 7 |
Choi, Samuel J (9)
|
PVASA |
50.86 |
53.19 |
2.33 |
| 8 |
Sun, Alec Y (10)
|
PVPAC |
51.54 |
54.98 |
3.44 |
| 9 |
Masiulis, Casen B (7)
|
PVNCAP |
56.06 |
55.41 |
-0.65 |
| 10 |
Hasan, Jayden (10)
|
PVWEA |
|
1:06.17 |
- |
| 11 |
Sanderson, Akhil (10)
|
PVWEA |
|
1:11.40 |
- |
|
Maniwang, Sebastian E (9)
|
PVPAC |
|
DQ |
- |