| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Stratis, Christian D (10)
|
NJBB |
45.39 |
44.20 |
-1.19 |
| 2 |
Donaldson, Andrew E (9)
|
MRYBAR |
45.97 |
48.21 |
2.24 |
| 3 |
Espinal, Rey A (10)
|
MRYBAR |
45.36 |
48.43 |
3.07 |
| 4 |
Lazarczyk, Andres (10)
|
MRMVA |
|
48.63 |
- |
| 5 |
Parekh, Aayush (9)
|
NJBB |
1:03.83 |
52.42 |
-11.41 |
| 6 |
Dewhurst, Joseph M (10)
|
MRDA |
53.74 |
53.94 |
0.20 |
| 7 |
Worthington, Griffin R (10)
|
MRMVA |
1:00.32 |
58.16 |
-2.16 |
| 8 |
Taranto, John T (10)
|
MRYBAR |
57.36 |
58.37 |
1.01 |
| 9 |
Perillo, Justin G (9)
|
MRDA |
59.52 |
1:00.59 |
1.07 |
| 10 |
Briecke, Koleton (9)
|
MRMVA |
|
1:25.86 |
- |
|
Delacruz, Christopher D (9)
|
NJBB |
1:02.33 |
DQ |
- |
|
Rivera, Jorge D (9)
|
MRMVA |
|
DQ |
- |