| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Butler, Daniel W (10)
|
PVPGPR |
39.73 |
35.59 |
-4.14 |
| 2 |
Joseph, Sulaiman B (10)
|
PVDCPR |
34.68 |
35.72 |
1.04 |
| 3 |
Barbour, Alexander F (10)
|
PVNCAP |
39.07 |
38.63 |
-0.44 |
| 4 |
Lopez, Lucas J (9)
|
PVNCAP |
39.74 |
40.07 |
0.33 |
| 5 |
Bromley, Brock R (9)
|
PVNCAP |
44.72 |
44.59 |
-0.13 |
| 6 |
Matsuyama, Aron J (9)
|
PVNCAP |
51.30 |
49.59 |
-1.71 |
| 7 |
Songu-Mbriwa, Nathanael K (9)
|
PVNCAP |
48.09 |
49.90 |
1.81 |
| 8 |
Hall, Amir N (10)
|
PVNCAP |
|
54.43 |
- |
| 9 |
Cidre, Avi (10)
|
PVDCPR |
1:12.18 |
1:08.05 |
-4.13 |
|
Hill, Miles J (10)
|
PVDCPR |
|
DQ |
- |
|
Dickerson Jr, Michael S (10)
|
PVNCAP |
|
NS |
- |
|
Qerimi, Artis (9)
|
PVNCAP |
42.33 |
NS |
- |