| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Lash, Liam (8)
|
AMUN-R |
1:25.11 |
1:23.95 |
-1.16 |
| 1 |
Buzzard, Simon J (8)
|
AMNGAC |
1:41.53 |
1:38.95 |
-2.58 |
| 2 |
McKelvey, Greyson O (9)
|
AMNGAC |
1:27.59 |
1:26.82 |
-0.77 |
| 2 |
Schneider, Ralston M (10)
|
AMFAST |
1:30.94 |
1:42.11 |
11.17 |
| 3 |
Pickett, Noah M (10)
|
AMMAC |
1:28.79 |
1:31.16 |
2.37 |
| 3 |
Pickett, Christopher B (8)
|
AMMAC |
2:01.11 |
1:42.97 |
-18.14 |
| 4 |
Petrina, William R (9)
|
AMNGAC |
1:37.00 |
1:33.81 |
-3.19 |
| 4 |
Haas, William C (8)
|
AMKW |
2:05.68 |
1:54.10 |
-11.58 |
| 5 |
Ruff, Desmond C (10)
|
AMKW |
1:32.72 |
1:33.82 |
1.10 |
| 6 |
Olinger, Phallen (8)
|
AMUN-R |
1:38.61 |
1:34.82 |
-3.79 |
| 7 |
Book, Parker R (10)
|
AMSRST |
1:23.96 |
1:35.02 |
11.06 |
| 8 |
Tucker, Jacob A (10)
|
AMCSC |
1:39.17 |
1:42.31 |
3.14 |