| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Finn, Connor (11)
|
MRTRI |
1:24.92 |
1:21.60 |
-3.32 |
| 1 |
Hynes, Aidan J (11)
|
MRLIE |
1:25.76 |
1:27.21 |
1.45 |
| 2 |
Ding, Charlie W (11)
|
MRFLY |
1:25.36 |
1:21.88 |
-3.48 |
| 2 |
Divina, Sebastian K (11)
|
MRMAKO |
1:25.79 |
1:28.30 |
2.51 |
| 3 |
Sainvil, Fenlay (11)
|
MRNYCP |
1:22.87 |
1:23.49 |
0.62 |
| 4 |
Corcuera, Christian L (11)
|
MRLGAC |
1:25.68 |
1:24.51 |
-1.17 |
| 5 |
Argeros, Spyros N (11)
|
MRJCCT |
1:24.74 |
1:24.85 |
0.11 |
| 6 |
Zarvovskiy, Anthony A (11)
|
MRSHY |
1:24.77 |
1:25.45 |
0.68 |
| 7 |
Truong, Koa (11)
|
MRQNS |
1:24.06 |
1:26.29 |
2.23 |
| 8 |
Han, Ethan (11)
|
MRNYCP |
1:24.44 |
1:26.38 |
1.94 |