| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Mullin, Joshua D (10)
|
MABWA |
47.04 |
46.35 |
-0.69 |
| 2 |
Kennedy, John T (10)
|
MAGSA |
49.56 |
47.38 |
-2.18 |
| 3 |
Ostrowski, Michael L (10)
|
MABLUE |
53.19 |
47.52 |
-5.67 |
| 4 |
Popat, Om B (10)
|
MAGAAC |
48.46 |
47.82 |
-0.64 |
| 5 |
Pase, Huck F (10)
|
MAFSA |
57.53 |
48.50 |
-9.03 |
| 6 |
LaRussa, Evan T (10)
|
MAEMAC |
49.14 |
48.58 |
-0.56 |
| 7 |
Coleman, Joseph J (10)
|
MANAC |
47.64 |
49.62 |
1.98 |
| 8 |
Baldino, Alexander J (10)
|
MASSC |
50.13 |
50.29 |
0.16 |
| 9 |
Perez, Shane T (10)
|
MABLUE |
55.11 |
55.13 |
0.02 |
| 10 |
Feliciano, Gabriel A (10)
|
MABLUE |
50.58 |
55.54 |
4.96 |
| 11 |
Brock, Graham P (10)
|
MABWA |
54.19 |
56.46 |
2.27 |
| 12 |
Williams, Caleb C (10)
|
MABWA |
52.46 |
56.54 |
4.08 |
|
Chorba, Michael T (10)
|
MANAC |
49.48 |
NS |
- |
|
Kord, Fedor (10)
|
MAORCA |
47.50 |
NS |
- |
|
Fogerty, Duncan J (10)
|
MASJAC |
51.01 |
NS |
- |
|
XU, Jerry (10)
|
MASJAC |
48.00 |
NS |
- |