| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Yang, Jihuan (9)
|
NJNJS |
1:16.87 |
1:14.89 |
-1.98 |
| 2 |
Xie, John (10)
|
AMAM |
1:17.76 |
1:18.45 |
0.69 |
| 3 |
Ramsay, Byron (10)
|
MAMA |
1:18.50 |
1:19.89 |
1.39 |
| 4 |
Feng, Nathan (10)
|
MAMA |
1:20.94 |
1:21.96 |
1.02 |
| 5 |
Trashkou, Yan (10)
|
MAMA |
1:20.94 |
1:22.32 |
1.38 |
| 6 |
Friedauer, Patrick T (10)
|
NJNJS |
1:24.19 |
1:24.67 |
0.48 |
| 7 |
Zhao, Jayden W (9)
|
AMAM |
1:27.15 |
1:27.77 |
0.62 |
| 8 |
MacLennan, Sidney (10)
|
MAMA |
1:34.54 |
1:30.01 |
-4.53 |
|
Parker, Clifton D (10)
|
AMAM |
1:26.19 |
1:25.87 |
-0.32 |
|
Bohra, Levi (9)
|
NJNJS |
1:48.77 |
1:52.03 |
3.26 |
|
Hargenrader, Joshua W (9)
|
AMAM |
1:43.54 |
DQ |
- |