| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Ochoa, Aidan M (17)
|
AMRXA |
54.03 |
55.69 |
1.66 |
| 2 |
Coleman, Jack W (17)
|
AMCSC |
54.46 |
56.75 |
2.29 |
| 3 |
Spehar, Colin J (18)
|
AMGLAC |
56.94 |
58.82 |
1.88 |
| 4 |
Tarbi, Nathaniel R (15)
|
AMCSC |
1:06.39 |
1:00.46 |
-5.93 |
| 5 |
Cratty, Charles G (16)
|
AMGLAC |
57.30 |
1:00.93 |
3.63 |
| 6 |
Kubistek, Cole J (15)
|
AMNAC |
1:16.57 |
1:01.90 |
-14.67 |
| 7 |
Smith, Ryan J (13)
|
AMPTSC |
1:12.48 |
1:03.17 |
-9.31 |
| 8 |
Cratty, Patrick H (14)
|
AMGLAC |
59.85 |
1:03.81 |
3.96 |
| 9 |
Miller, Phillip J (18)
|
AMCSC |
1:02.08 |
1:04.02 |
1.94 |
| 10 |
Shearer, Evan R (17)
|
AMSRST |
1:02.72 |
1:04.04 |
1.32 |
| 11 |
Marcincavage, Roddy G (13)
|
AMNAC |
1:04.40 |
1:04.36 |
-0.04 |
| 12 |
Wu, Christopher S (13)
|
AMFAST |
1:10.85 |
1:06.50 |
-4.35 |
| 13 |
Vietmeier, Matthew A (14)
|
AMEFSC |
1:08.91 |
1:10.29 |
1.38 |
| 14 |
Weber, Max A (14)
|
AMFAST |
1:11.32 |
1:10.97 |
-0.35 |
| 16 |
Matz, Allen J (14)
|
AMSRST |
1:12.03 |
1:12.07 |
0.04 |
| 17 |
Rodriguez, Alejandro D (13)
|
AMPTSC |
1:16.21 |
1:15.30 |
-0.91 |
| 18 |
Obara, Joseph D (14)
|
AMEFSC |
1:13.49 |
1:15.65 |
2.16 |
| 19 |
Barton, Isaac B (13)
|
AMRGSY |
1:20.63 |
1:17.42 |
-3.21 |
| 20 |
Crossett, Nicholas R (13)
|
AMEFSC |
1:21.28 |
1:19.26 |
-2.02 |
| 21 |
Samuels, Liam J (13)
|
AMNAC |
1:17.25 |
1:24.30 |
7.05 |
|
Porco, Giuseppe G (17)
|
AMCSC |
1:15.12 |
DQ |
- |
|
Fine, Thomas R (14)
|
AMEFSC |
1:04.79 |
NS |
- |