| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Masten, Michael A (16)
|
ADSARY |
52.68 |
52.24 |
-0.44 |
| 2 |
Feret, Elijah C (16)
|
ADGLEN |
52.58 |
53.08 |
0.50 |
| 3 |
Ford, Aidan D (16)
|
ADGLFY |
54.70 |
53.57 |
-1.13 |
| 4 |
Bodien, Robert C (16)
|
ADSARY |
54.92 |
53.64 |
-1.28 |
| 5 |
Caimano, Ross M (16)
|
ADGLFY |
50.78 |
53.84 |
3.06 |
| 6 |
Bonesteel, Dimitri A (16)
|
ADGLFY |
52.52 |
53.91 |
1.39 |
| 7 |
Loucks, Noah (15)
|
ADGLEN |
56.91 |
55.54 |
-1.37 |
| 8 |
Sarabia, Lucas R (15)
|
ADGLOY |
59.27 |
1:00.29 |
1.02 |
| 9 |
Jasewicz, Bradley (15)
|
ADGLOY |
1:03.21 |
1:00.73 |
-2.48 |
| 10 |
Borst, Dillon J (15)
|
ADGLEN |
1:01.30 |
1:02.81 |
1.51 |
| 11 |
Mielcarek, Maxwell J (15)
|
ADKING |
1:03.62 |
1:06.79 |
3.17 |