| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Pyun, Declan S (8)
|
MRBAD |
1:04.18 |
50.14 |
-14.04 |
| 2 |
Eterovic, Dante F (8)
|
MREAST |
58.83 |
55.46 |
-3.37 |
| 3 |
Condon, Liam J (8)
|
MRBAD |
1:01.38 |
55.90 |
-5.48 |
| 4 |
Chusuei, Noah Y (8)
|
MREAST |
59.79 |
59.91 |
0.12 |
| 5 |
Kelly, Gavin J (8)
|
MRBAD |
1:30.00 |
1:02.17 |
-27.83 |
| 6 |
Steers, William M (7)
|
MREAST |
|
1:02.74 |
- |
| 7 |
Watson, Willem T (8)
|
CTGRYM |
|
1:03.56 |
- |
|
Chen, Miles P (8)
|
MREAST |
|
DQ |
- |
|
Licciardello, Isaac C (8)
|
MREAST |
|
DQ |
- |
|
Mayne, Charles H (8)
|
MREAST |
1:04.72 |
DQ |
- |
|
Mayne, Hunter H (7)
|
MREAST |
|
DQ |
- |
|
Wang, Alan (8)
|
MREAST |
|
DQ |
- |