| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Deemer, Samuel K (14)
|
LELESD |
52.39 |
56.87 |
4.48 |
| 2 |
Matteson, Owen K (14)
|
NISTAR |
53.05 |
57.04 |
3.99 |
| 3 |
Kemp, Evan C (13)
|
LELESD |
1:01.61 |
1:02.59 |
0.98 |
| 4 |
Moritz, Connor R (13)
|
LELESD |
|
1:03.59 |
- |
| 5 |
Fritsch, Victor E (14)
|
NITTSC |
1:11.80 |
1:09.50 |
-2.30 |
| 6 |
Leighton, Benjamin W (14)
|
NISTAR |
1:06.45 |
1:09.94 |
3.49 |
| 7 |
Scalfani-Cohen, Andrew J (13)
|
NIVELO |
1:10.13 |
1:11.36 |
1.23 |
| 8 |
Attea, Phillip (13)
|
NIVELO |
1:15.42 |
1:17.70 |
2.28 |
| 9 |
Attuwaybi, Ismail B (13)
|
NIVELO |
1:13.74 |
1:19.73 |
5.99 |
| 10 |
Betterelli, Tristan J (13)
|
NIVELO |
1:19.85 |
1:26.58 |
6.73 |
| 11 |
Jensen, Stuart M (14)
|
NICLSC |
1:21.51 |
1:28.17 |
6.66 |
| 12 |
Domster, Aidan M (13)
|
NISTAR |
1:41.84 |
1:28.25 |
-13.59 |
| 13 |
Harhigh, Robert H (14)
|
NIVELO |
1:38.67 |
1:28.65 |
-10.02 |
| 14 |
Burkett, Aaron C (13)
|
NISTAR |
1:33.17 |
1:33.55 |
0.38 |
|
Kashino, Thomas S (13)
|
NISTAR |
1:25.07 |
NS |
- |
|
Klimczak, Owen C (13)
|
NIVELO |
1:31.79 |
NS |
- |