| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
McCree-Salazar, Caden C (10)
|
MRHVD |
43.21 |
40.65 |
-2.56 |
| 2 |
Kui, Barnabas Z (10)
|
MRRFAC |
40.50 |
41.61 |
1.11 |
| 3 |
Berko, Reuben L (9)
|
MRNDAC |
46.18 |
43.47 |
-2.71 |
| 4 |
Espinoza-Soriano, Jorge (9)
|
MRMHH |
45.94 |
46.61 |
0.67 |
| 5 |
Kui, Adam W (10)
|
MRRFAC |
44.04 |
47.91 |
3.87 |
| 6 |
Ruiz, Japhet N (8)
|
MRMHH |
48.26 |
49.10 |
0.84 |
| 7 |
Goodwin, Owen M (8)
|
MRRFAC |
56.31 |
49.21 |
-7.10 |
| 8 |
Poellot, Reed C (10)
|
MRHVD |
46.80 |
51.87 |
5.07 |
| 9 |
Olarte, Alejandro J (10)
|
MRHVD |
51.43 |
52.23 |
0.80 |
| 10 |
North, Benjamin D (8)
|
MRHVD |
|
52.75 |
- |
| 11 |
Vega, Isidro R (9)
|
MRRFAC |
54.25 |
53.70 |
-0.55 |
| 12 |
Howard, Sam W (9)
|
MRRFAC |
58.13 |
54.75 |
-3.38 |
| 13 |
He, Timothy J (6)
|
MRRFAC |
1:03.65 |
56.31 |
-7.34 |
| 14 |
Aragon Espinoza, Edahi (7)
|
MRMHH |
1:02.30 |
1:00.14 |
-2.16 |
| 15 |
Touijar, Ali (9)
|
MRMHH |
59.40 |
1:03.39 |
3.99 |
| 16 |
Fearon, Jamiel B (6)
|
MRMHH |
1:16.39 |
1:03.77 |
-12.62 |
|
Weeks, Edward N (7)
|
MRMHH |
59.25 |
DQ |
- |
|
Chiappetta, Paolo A (9)
|
MRRFAC |
1:12.26 |
DQ |
- |
|
Olarte, Andres G (7)
|
MRHVD |
|
DQ |
- |