| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Rawl, Daniel M (17)
|
MRNDAC |
52.24 |
51.98 |
-0.26 |
| 1 |
Vondrak, Benjamin S (17)
|
MRNYSA |
54.19 |
51.98 |
-2.21 |
| 1 |
Williams, Aaron D (18)
|
MRYMID |
52.12 |
51.98 |
-0.14 |
| 1 |
Ma, Edmond (17)
|
MRPATS |
52.42 |
52.36 |
-0.06 |
| 1 |
Bowers, Aidan C (15)
|
MRBGNW |
53.25 |
55.58 |
2.33 |
| 2 |
Jaquez, Dessaniel * (17)
|
MRRA |
52.66 |
52.60 |
-0.06 |
| 2 |
Jorge, Dylan E (17)
|
MRDA |
54.03 |
55.62 |
1.59 |
| 3 |
Karen, Jason C (17)
|
MRSSL |
53.24 |
52.61 |
-0.63 |
| 4 |
Cavotti, Parker (18)
|
MRNDAC |
54.41 |
52.83 |
-1.58 |
| 5 |
Woolley, Zachary E (18)
|
MRHVD |
52.27 |
52.93 |
0.66 |
| 6 |
Lederer, Derek (17)
|
MRNYSA |
54.42 |
53.08 |
-1.34 |
| 7 |
Nicholas, Charles (17)
|
MRDA |
53.40 |
53.21 |
-0.19 |
| 8 |
Crimi, Christopher P (16)
|
MRCOND |
52.77 |
53.22 |
0.45 |
| 9 |
Markic, Marin (16)
|
MRPATS |
52.50 |
53.53 |
1.03 |
| 10 |
Ansehl, William Z (18)
|
MREAST |
53.36 |
53.60 |
0.24 |
| 11 |
Flynn, Sean P (16)
|
MRSSL |
52.59 |
53.61 |
1.02 |
| 12 |
Nicholas, Chauncey (15)
|
MRDA |
53.09 |
53.69 |
0.60 |
| 13 |
McPhillips, Liam T (16)
|
MRGAEL |
54.13 |
53.79 |
-0.34 |
| 14 |
Luhrs, Derek G (16)
|
MRNYSA |
52.59 |
53.82 |
1.23 |
| 15 |
Ridge, Liam M (17)
|
MRPAC |
54.19 |
53.87 |
-0.32 |
| 16 |
Stangeby, Jon-Christian (15)
|
MRAG |
54.44 |
54.24 |
-0.20 |