| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Yu, Andrew (12)
|
NJUNWW |
41.10 |
42.44 |
1.34 |
| 2 |
Messina, Chas (12)
|
NJNJBL |
43.28 |
43.90 |
0.62 |
| 3 |
Lin, Evan (12)
|
NJXCEL |
46.92 |
44.88 |
-2.04 |
| 4 |
Tien, Calvin (11)
|
NJPTAC |
44.05 |
45.88 |
1.83 |
| 5 |
Pal, Vikram (11)
|
NJUNWW |
46.03 |
46.95 |
0.92 |
| 6 |
Zoubarev, Daniel (12)
|
NJXCEL |
46.30 |
47.76 |
1.46 |
| 7 |
Kane, Owen Z (12)
|
NJSCAR |
49.71 |
49.24 |
-0.47 |
| 8 |
Ou, William (11)
|
NJUNWW |
50.29 |
50.96 |
0.67 |
| 9 |
Buftea Jimenez, Alexander J (11)
|
NJNJBL |
51.86 |
52.92 |
1.06 |
| 10 |
Shah, Ziv D (12)
|
NJSCAR |
51.73 |
53.43 |
1.70 |
| 11 |
Li, Han (11)
|
NJPTAC |
55.05 |
54.18 |
-0.87 |
| 12 |
McCune, James D (12)
|
NJHACY |
52.24 |
54.38 |
2.14 |
| 13 |
Mejias, Keegan J (11)
|
NJHACY |
1:00.63 |
1:01.06 |
0.43 |
| 14 |
Kent, Landon A (11)
|
NJPTAC |
1:04.55 |
1:04.80 |
0.25 |
|
Pochinapeddi, Aditya A (11)
|
NJPTAC |
53.94 |
DQ |
- |