| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Dowd, Michael R (16)
|
MRCSDC |
50.16 |
51.29 |
1.13 |
| 2 |
Xu, Kevin J (17)
|
MRTVSC |
50.66 |
52.01 |
1.35 |
| 3 |
Macejko, Dylan M (17)
|
MRCSDC |
49.38 |
52.57 |
3.19 |
| 4 |
Pergan III, Chester J (16)
|
MRTVSC |
51.43 |
54.11 |
2.68 |
| 5 |
Wang, Shuping (15)
|
MRTVSC |
54.60 |
54.47 |
-0.13 |
| 6 |
Veit, Brian J (15)
|
MRTVSC |
55.70 |
55.62 |
-0.08 |
| 7 |
Rice, Maverick D (15)
|
MRCSDC |
53.05 |
55.78 |
2.73 |
| 8 |
Stanzione, Jonathan D (15)
|
MRCSDC |
56.25 |
56.42 |
0.17 |
| 9 |
Buchen, Kasper G (15)
|
MRTVSC |
56.12 |
56.65 |
0.53 |
| 10 |
Fehrenbach, Robby (15)
|
MRHAA |
56.54 |
57.10 |
0.56 |
| 11 |
Gorman, Kyle (15)
|
MRCSDC |
58.57 |
57.63 |
-0.94 |
| 12 |
Muroff, Michael C (17)
|
MRTVSC |
55.89 |
58.56 |
2.67 |
| 13 |
Connors, Ryan (17)
|
MRLIE |
55.25 |
58.64 |
3.39 |
| 14 |
Spameni, Nicholas R (15)
|
MRCSDC |
58.97 |
58.93 |
-0.04 |
| 15 |
Malone, Joseph F (17)
|
MRLIE |
1:00.00 |
59.20 |
-0.80 |
| 16 |
Trzaskowski, Michael (15)
|
MRHAA |
1:02.06 |
59.75 |
-2.31 |
| 17 |
Polley, Aidan J (15)
|
MRCSDC |
1:02.70 |
1:01.35 |
-1.35 |
| 18 |
Gaspard, Chad A (16)
|
MRLIE |
1:01.57 |
1:01.48 |
-0.09 |
| 19 |
Tsiabasis, Yanni (15)
|
MRHAA |
1:02.08 |
1:03.56 |
1.48 |
| 20 |
Sciurca, Nicholas (15)
|
MRHAA |
1:09.65 |
1:13.09 |
3.44 |
| 21 |
Covarrubias, Julian A (15)
|
MRCSDC |
|
1:20.40 |
- |
|
McLaughlin, Joseph W (16)
|
MRFA |
1:02.31 |
NS |
- |