| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Lemos, Bryce C (6)
|
PVRMSC |
44.83 |
46.18 |
1.35 |
| 2 |
Romero-Zermeno, Austin (6)
|
PVRMSC |
45.60 |
47.74 |
2.14 |
| 3 |
Jeon, Maximilian T (5)
|
PVWSH |
48.49 |
49.49 |
1.00 |
| 4 |
Rodriguez, Nicolas P (5)
|
PVFISH |
54.30 |
52.53 |
-1.77 |
| 5 |
Zhang, Martin (6)
|
PVRMSC |
|
53.24 |
- |
| 6 |
Abey, Lucas (6)
|
PVRMSC |
53.61 |
54.61 |
1.00 |
| 7 |
Bai, Max J (6)
|
PVRMSC |
57.55 |
55.88 |
-1.67 |
| 8 |
Bur, Matthias A (6)
|
PVRMSC |
50.57 |
58.37 |
7.80 |
| 9 |
Omar, Zane I (6)
|
PVASA |
1:01.14 |
1:01.48 |
0.34 |
| 10 |
Han, Jayden (6)
|
PVRMSC |
|
1:03.71 |
- |
|
Barnes, Khalil D (6)
|
PVASTS |
|
NS |
- |
|
Schensnovich, Aleksandr (6)
|
PVRMSC |
52.16 |
NS |
- |
|
Young, Shane S (6)
|
PVTOLL |
40.27 |
NS |
- |