| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Bucaro, Lucas K (14)
|
ILBSC |
17:11.93 |
16:52.52 |
-19.41 |
| 2 |
Ivascu, George H (14)
|
ILCWAC |
18:16.77 |
17:24.88 |
-51.89 |
| 3 |
Kirkman, Austin (14)
|
ILWHTN |
18:07.68 |
17:31.80 |
-35.88 |
| 4 |
Bardak, Tyler A (14)
|
ILFMC |
18:16.50 |
17:36.72 |
-39.78 |
| 5 |
Brereton, Noah S (14)
|
ILBSC |
17:46.44 |
17:46.22 |
-0.22 |
| 6 |
Chan, Parker S (14)
|
ILFMC |
17:41.34 |
17:47.83 |
6.49 |
| 6 |
Rupniewski, Oliver A (13)
|
ILPPD |
18:18.29 |
17:47.83 |
-30.46 |
| 8 |
Maier, Chase R (14)
|
ILTIDE |
17:23.30 |
17:48.50 |
25.20 |
| 9 |
Byrne, Ronan M (14)
|
ILHSC |
18:18.29 |
17:58.27 |
-20.02 |
| 10 |
Guo, William C (14)
|
ILBSC |
17:53.93 |
17:58.50 |
4.57 |
| 11 |
O'Donnell, Tiernan G (14)
|
ILSCST |
18:27.92 |
18:09.70 |
-18.22 |
| 12 |
Walliker, Logan A (14)
|
ILPAWW |
18:12.59 |
18:25.66 |
13.07 |
| 13 |
Keller, Luke R (13)
|
ILBSC |
18:06.62 |
18:27.22 |
20.60 |
| 14 |
Hulett, Aiden J (14)
|
ILTIDE |
17:56.75 |
18:33.77 |
37.02 |
| 15 |
Rulkowski, Anthony J (14)
|
ILPPD |
18:18.29 |
18:38.38 |
20.09 |
| 16 |
Amaravadi, Asritha Vallabha (14)
|
ILFOX |
18:18.29 |
18:42.50 |
24.21 |