| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Swanholm, Spencer A (12)
|
MASJAC |
46.19 |
38.64 |
-7.55 |
| 2 |
Keegan, Daniel P (11)
|
MASJAC |
43.61 |
38.91 |
-4.70 |
| 3 |
Smith, Riley M (11)
|
MAECCC |
40.95 |
39.74 |
-1.21 |
| 4 |
Leibowitz, Adam S (11)
|
MASJAC |
|
39.81 |
- |
| 5 |
Pasquini, Alexander A (12)
|
MASJAC |
|
41.65 |
- |
| 6 |
McGlynn, Declan J (12)
|
MASJAC |
|
42.64 |
- |
| 7 |
Geist, Hans A (12)
|
MASJAC |
59.57 |
46.55 |
-13.02 |
| 8 |
Leone, Christian J (12)
|
MASJAC |
54.22 |
47.97 |
-6.25 |
| 9 |
Manigrassi, Jackson T (11)
|
MAWAVE |
|
50.09 |
- |
| 10 |
Tran, Ethan D (11)
|
MAPVA |
50.86 |
50.92 |
0.06 |
| 11 |
Lundgren, Andrew F (11)
|
MASJAC |
|
53.47 |
- |
| 12 |
Sundaraman, Shreyas (12)
|
MAT85 |
|
1:02.19 |
- |