| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Boutin, Dylan (12)
|
MRLIAC |
42.54 |
40.97 |
-1.57 |
| 2 |
Barrett, Noah D (11)
|
MRYMID |
43.03 |
42.14 |
-0.89 |
| 3 |
Ilardo, Jonathan E (12)
|
MRLIAC |
50.77 |
49.46 |
-1.31 |
| 4 |
Gentilini, Peter J (12)
|
MRBBSC |
53.30 |
49.58 |
-3.72 |
| 5 |
Kazlauskas, Evan (12)
|
MRHAA |
48.10 |
49.75 |
1.65 |
| 6 |
Natindim, Leif E (12)
|
MRLIAC |
54.19 |
50.49 |
-3.70 |
| 7 |
Leon, Brian (11)
|
MRLIAC |
56.87 |
52.85 |
-4.02 |
| 8 |
Tan, Matthew K (11)
|
MRLIAC |
53.28 |
53.84 |
0.56 |
| 9 |
Coutsouradis, John C (12)
|
MRLIAC |
54.87 |
54.44 |
-0.43 |
| 10 |
Ehrlich, Tyler E (11)
|
MRLIAC |
57.08 |
55.49 |
-1.59 |
| 11 |
Chen, Joshua (12)
|
MRST |
1:03.13 |
55.79 |
-7.34 |
| 12 |
Park, Juneil J (11)
|
MRLIAC |
54.80 |
56.14 |
1.34 |
| 13 |
Huang, Gary (11)
|
MRST |
1:11.76 |
56.83 |
-14.93 |
| 14 |
Chen, Ethan Y (11)
|
MRLIAC |
1:01.82 |
57.16 |
-4.66 |
| 15 |
Fava, Zachary T (12)
|
MRLIAC |
1:00.00 |
57.88 |
-2.12 |
| 16 |
Zhao, Eric (11)
|
MRST |
55.00 |
57.95 |
2.95 |
| 17 |
Quinn, Kelan (11)
|
MRLIAC |
1:01.54 |
59.64 |
-1.90 |
| 18 |
Parmar, Arvind S (11)
|
MRLIAC |
1:03.22 |
1:03.58 |
0.36 |
| 19 |
Lee, Benjamin J (11)
|
MRLIAC |
1:15.00 |
1:11.47 |
-3.53 |
|
Duckfield, William D (11)
|
MRLIAC |
1:15.00 |
DQ |
- |
|
Neria, Andrew (12)
|
MRST |
1:09.00 |
DQ |
- |