| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Gocotano, Elijah M (14)
|
MALAC |
|
54.22 |
- |
| 2 |
O'Connell, Brendan G (14)
|
MAHAC |
54.98 |
55.39 |
0.41 |
| 3 |
Blacker, Alexander L (13)
|
MAHAC |
57.43 |
56.70 |
-0.73 |
| 4 |
Mills, Bryce M (13)
|
MAHAC |
57.62 |
57.39 |
-0.23 |
| 5 |
Paul, Thomas M (13)
|
MAHAC |
1:00.78 |
1:00.81 |
0.03 |
| 6 |
Dillon, Mason R (13)
|
MAHAC |
1:01.29 |
1:02.87 |
1.58 |
| 7 |
Wingert, Andreas M (13)
|
MAHAC |
1:03.58 |
1:03.11 |
-0.47 |
| 8 |
Dundas, Nathan D (13)
|
MACYA |
1:03.13 |
1:03.89 |
0.76 |
| 9 |
Fuertes, Justin Derick (14)
|
MALAC |
|
1:04.36 |
- |
| 10 |
Chappell, Benjamin J (14)
|
MAHAC |
1:07.29 |
1:05.05 |
-2.24 |
| 11 |
Carricato, Dominic V (13)
|
MAHAC |
1:09.16 |
1:08.30 |
-0.86 |