| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Quinlan, Daniel R (8)
|
MRLIAC |
43.97 |
40.94 |
-3.03 |
| 2 |
McDonald, Ryan J (8)
|
MRBAD |
45.08 |
42.26 |
-2.82 |
| 3 |
Bellach, Daniel C (7)
|
MRBAD |
47.85 |
44.84 |
-3.01 |
| 3 |
Mente, Daniel S (8)
|
MRMPNY |
48.27 |
44.84 |
-3.43 |
| 5 |
Gonzalez, Alejandro (8)
|
MRAPEX |
47.67 |
45.40 |
-2.27 |
| 6 |
St. Thomas, Harrison J (7)
|
MRLIAC |
49.08 |
45.85 |
-3.23 |
| 7 |
Teplitsky, Brian M (8)
|
MRUN |
43.76 |
46.48 |
2.72 |
| 8 |
Flaherty, Kieran D (7)
|
MRBAD |
46.42 |
48.78 |
2.36 |
| 9 |
Anderson, Quinn J (7)
|
MRBAD |
|
49.12 |
- |
| 10 |
Grimes, TJ J (8)
|
MRBAD |
49.14 |
50.89 |
1.75 |
| 11 |
Tuminello, Nicholas S (8)
|
MRFREE |
49.91 |
50.92 |
1.01 |
| 12 |
Gutin, Noah (7)
|
MRMPNY |
58.86 |
53.80 |
-5.06 |
| 13 |
Sweeney, Henry H (8)
|
MRBAD |
54.38 |
59.38 |
5.00 |
|
Grushovenko, David (8)
|
MRMPNY |
52.05 |
DQ |
- |