| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Savchuk, Michael (15)
|
MRMPNY |
50.37 |
50.16 |
-0.21 |
| 2 |
Ng, Eyton E (15)
|
MRFREE |
51.67 |
50.69 |
-0.98 |
| 3 |
Kwan, William (16)
|
MRFREE |
50.98 |
51.25 |
0.27 |
| 4 |
Cherny, Eric (17)
|
MRMPNY |
51.14 |
52.65 |
1.51 |
| 5 |
Singer, Connor M (17)
|
MRFREE |
53.49 |
52.82 |
-0.67 |
| 6 |
O'Dea, Evan J (17)
|
MRFREE |
|
53.20 |
- |
| 7 |
Pavlyshche, Vadym (15)
|
MRMPNY |
55.00 |
54.33 |
-0.67 |
| 8 |
Kravets Filatov, Michael V (16)
|
MRMPNY |
54.82 |
54.62 |
-0.20 |
| 9 |
Geller, Russell (16)
|
MRFREE |
56.22 |
56.49 |
0.27 |
| 10 |
Yu, Destin (15)
|
MRMPNY |
1:02.56 |
59.54 |
-3.02 |
| 11 |
Mark, John G (17)
|
MRFREE |
1:00.86 |
59.62 |
-1.24 |
|
Pidhoretskyy, Valerii (15)
|
MRMPNY |
50.08 |
DQ |
- |
|
DiMaggio, John P (16)
|
MRMPNY |
54.38 |
NS |
- |