| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Boles, Andrew B (14)
|
MAGAAC |
54.28 |
53.54 |
-0.74 |
| 1 |
D'Ariano, Landon N (13)
|
MAGAAC |
|
55.00 |
- |
| 1 |
Sleptsov, Alex D (14)
|
MAPCAC |
57.69 |
55.01 |
-2.68 |
| 2 |
Brattini, Michael M (14)
|
MARAYS |
56.87 |
55.22 |
-1.65 |
| 2 |
Olmstead, Luke N (14)
|
MALYM |
1:00.99 |
57.33 |
-3.66 |
| 2 |
Menasion, Miles V (14)
|
MASERP |
56.28 |
57.36 |
1.08 |
| 3 |
Rosenberg, Charles (13)
|
MAUN-L |
59.05 |
58.43 |
-0.62 |
| 3 |
Schnapf, Aidan M (13)
|
MACBST |
|
59.55 |
- |
| 4 |
Moore, Thomas A (13)
|
MASERP |
1:02.50 |
1:00.06 |
-2.44 |
| 4 |
Chieffo, Brian E (13)
|
MARAYS |
59.65 |
59.89 |
0.24 |
| 5 |
Paranjpe, Eashan (14)
|
MAUN-L |
1:00.61 |
1:00.55 |
-0.06 |
| 5 |
Brattini, Nicholas M (14)
|
MARAYS |
1:03.03 |
1:00.69 |
-2.34 |
| 6 |
Stanczewski, William L (13)
|
MAPWAC |
1:00.35 |
1:00.76 |
0.41 |
| 6 |
Kaminski, Walter B (14)
|
MARAYS |
1:02.68 |
1:01.17 |
-1.51 |
| 7 |
Ronayne, Tristan X (13)
|
MARAYS |
1:01.28 |
1:01.75 |
0.47 |
| 8 |
Albinsky, David A (13)
|
MAGAAC |
1:04.90 |
1:02.39 |
-2.51 |
| 9 |
Bierman, Eskander (13)
|
MAUN-L |
1:05.54 |
1:02.87 |
-2.67 |
| 10 |
Fulmor, Jude I (13)
|
MACHEL |
1:07.02 |
1:04.71 |
-2.31 |
| 11 |
Li, Daniel (14)
|
MAACAC |
|
1:22.68 |
- |
|
Zoldan, Alexander P (14)
|
MAGAAC |
57.92 |
NS |
- |
|
DeSantis, Joseph N (14)
|
MAGAAC |
58.76 |
NS |
- |