| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Ho, Jeremy J (12)
|
MANRG |
46.75 |
44.22 |
-2.53 |
| 1 |
Fenstermacher, Tucker W (12)
|
MANLAC |
44.58 |
46.03 |
1.45 |
| 2 |
Toomey, Justin P (11)
|
MAPAAC |
|
44.27 |
- |
| 2 |
Hoffman, Leif E (11)
|
MANLAC |
45.20 |
48.46 |
3.26 |
| 3 |
Isupov, Aleksander F (11)
|
MATHY |
52.21 |
46.23 |
-5.98 |
| 4 |
Tumino, Anthony A (11)
|
MANLAC |
49.02 |
47.97 |
-1.05 |
| 5 |
Brownstead, John R (11)
|
MANLAC |
46.85 |
48.74 |
1.89 |
| 6 |
Long, Cael F (11)
|
MANLAC |
50.19 |
51.25 |
1.06 |
| 7 |
Mikolajewski, Charles (11)
|
MAPCAC |
53.30 |
54.45 |
1.15 |
| 8 |
Collins, Ryan J (11)
|
MDBAAC |
|
1:01.94 |
- |
| 9 |
Chung, Daniel (11)
|
MDBAAC |
|
1:06.49 |
- |
|
Hemingway, Patrick A (12)
|
MALPAC |
|
42.06 |
- |
|
Keillor, Aidan (12)
|
MAUDAC |
|
42.94 |
- |
|
Majka, Noah J (11)
|
MDBAAC |
|
NS |
- |
|
Dillon, Mason R (12)
|
MASLST |
45.19 |
NS |
- |