| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Ferreira, Shota L (12)
|
HIAAA |
18:17.80 |
18:03.13 |
-14.67 |
| 2 |
McCoy, Jake K (11)
|
IEGMSC |
18:19.34 |
18:10.98 |
-8.36 |
| 3 |
Johnson, Luc D (12)
|
IETCCC |
18:39.30 |
18:26.28 |
-13.02 |
| 4 |
Cratsenberg, Miles D (12)
|
PNBBST |
18:37.91 |
18:29.57 |
-8.34 |
| 5 |
Sieckhaus, Jack G (12)
|
PNOCA |
19:16.32 |
18:47.90 |
-28.42 |
| 6 |
Skiff, Conner M (12)
|
PNUPAC |
19:15.72 |
18:49.04 |
-26.68 |
| 7 |
Sanger, Frank J (12)
|
ORTHSC |
18:37.01 |
18:50.70 |
13.69 |
| 8 |
Cannon, Henry L (12)
|
ORPAC |
19:30.68 |
19:16.23 |
-14.45 |
| 9 |
Chen, Jerry (12)
|
PNCSC |
19:42.15 |
19:26.65 |
-15.50 |
| 10 |
Serafimovici, Dmitriy V (11)
|
PNUPAC |
19:38.50 |
19:32.92 |
-5.58 |
| 11 |
Tan, Ayden H (12)
|
PNPRO |
19:24.61 |
19:39.21 |
14.60 |
| 12 |
Ignatescu, Andrew T (12)
|
ORTHSC |
19:23.04 |
19:41.41 |
18.37 |
|
Colloton, Connor T (11)
|
PNUN-0 |
20:31.56 |
20:22.77 |
-8.79 |
|
Brown, Ethan R (11)
|
MTBAC |
20:49.31 |
20:48.33 |
-0.98 |