| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Feng, Andrew Y (10)
|
NTNTN |
1:23.34 |
1:17.35 |
-5.99 |
| 2 |
Barrett, Brayden W (10)
|
NTNTN |
1:23.47 |
1:18.90 |
-4.57 |
| 3 |
Smith, George A (10)
|
NTNTN |
1:23.88 |
1:24.86 |
0.98 |
| 4 |
Tuapen, Angelo Jacob V (10)
|
NTNTN |
1:27.07 |
1:27.54 |
0.47 |
| 5 |
Parrott, Grant M (7)
|
NTNTN |
1:28.37 |
1:28.33 |
-0.04 |
| 6 |
Andal, Marcus J (9)
|
NTNTN |
1:48.22 |
1:37.78 |
-10.44 |
| 7 |
Finklea, Ethan Y (9)
|
NTNTN |
1:43.27 |
1:38.45 |
-4.82 |
| 8 |
McWhorter, Marshall J (8)
|
NTUN |
1:49.07 |
1:39.85 |
-9.22 |
| 9 |
Gajanayaka, Chanul (10)
|
NTNTN |
1:43.14 |
1:42.42 |
-0.72 |
| 10 |
Gutierrez, Kai H (10)
|
NTNTN |
1:41.16 |
1:43.07 |
1.91 |
| 11 |
Plummer, Charlton K (10)
|
NTNTN |
|
1:44.51 |
- |
| 12 |
Li, Matthew H (10)
|
NTNTN |
|
1:48.56 |
- |
| 13 |
Moore, Paul W (9)
|
NTNTN |
1:44.24 |
1:49.78 |
5.54 |
| 14 |
Gantchev, David A (9)
|
NTO2 |
1:50.43 |
1:51.54 |
1.11 |
|
Sun, Lucas (9)
|
NTNTN |
|
DQ |
- |
|
Tong, Brandon Q (10)
|
NTNTN |
1:37.63 |
DQ |
- |