| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Lee, Kalvin I (10)
|
NJSHY |
52.30 |
47.81 |
-4.49 |
| 2 |
Ni, Lucas C (10)
|
NJSHY |
49.37 |
48.66 |
-0.71 |
| 3 |
Ng, Jonathan (9)
|
NJSHY |
53.83 |
49.13 |
-4.70 |
| 4 |
Lee, Korbon I (10)
|
NJSHY |
51.71 |
49.51 |
-2.20 |
| 5 |
Backus, Leo (9)
|
NJGMY |
51.12 |
51.67 |
0.55 |
| 6 |
Reddy, Ranveer (10)
|
NJSHY |
52.69 |
52.13 |
-0.56 |
| 7 |
Kottler, Samuel I (9)
|
NJSAY |
55.00 |
52.72 |
-2.28 |
| 8 |
Kettler, Austin J (9)
|
NJSHY |
1:02.83 |
53.56 |
-9.27 |
| 9 |
Li, Freddie (10)
|
NJSHY |
|
54.94 |
- |
| 10 |
Susanto, Jayden (9)
|
NJGMY |
1:02.28 |
57.10 |
-5.18 |
| 11 |
Zassenhaus, Adrian M (9)
|
NJGMY |
1:00.18 |
57.59 |
-2.59 |
| 12 |
deGrandpre, Peter X (10)
|
NJSHY |
|
59.09 |
- |
| 13 |
Mehta, Aakash R (9)
|
NJSHY |
|
1:01.02 |
- |
|
Chen, Liam F (9)
|
NJSHY |
|
DQ |
- |
|
L'Estrange, Nicholas P (9)
|
NJSHY |
|
DQ |
- |