| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Knabb, Oliver P (19)
|
MALAC |
57.80 |
1:01.18 |
3.38 |
| 2 |
McAllister, Patrick L (15)
|
MAPAAC |
1:10.47 |
1:09.50 |
-0.97 |
| 3 |
Kolokithias, Stephen T (18)
|
MANPAC |
1:05.99 |
1:11.32 |
5.33 |
| 4 |
Estep, Kaiden (13)
|
MASHIP |
1:15.26 |
1:17.65 |
2.39 |
| 5 |
Naraga, Wilfred L (12)
|
MAUMAC |
|
1:22.31 |
- |
| 6 |
Dolan, Nathaniel W (15)
|
MAPAAC |
1:20.41 |
1:23.36 |
2.95 |
| 7 |
Welgosh, Raymond L (11)
|
MAUMAC |
|
1:25.11 |
- |
| 8 |
Klein, William J (13)
|
MANPAC |
1:26.87 |
1:27.60 |
0.73 |
| 9 |
Ellis, Ryan T (12)
|
MAGAAC |
1:31.18 |
1:29.02 |
-2.16 |
|
McElrath, Walker M (9)
|
MACBST |
|
NS |
- |