| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Buitron, Christopher C (16)
|
MAWA |
51.75 |
53.33 |
1.58 |
| 2 |
Graham, Jackson T (16)
|
MALMAC |
54.25 |
55.62 |
1.37 |
| 3 |
Branigan, Carter J (15)
|
MARAD |
54.43 |
56.61 |
2.18 |
| 4 |
Deppen, Jack C (15)
|
MANPAC |
54.14 |
57.11 |
2.97 |
| 5 |
Sivo, Matthew R (15)
|
MAWA |
55.93 |
59.45 |
3.52 |
| 6 |
Valdes, Jonathan G (15)
|
MAEAAC |
58.49 |
1:00.38 |
1.89 |
| 7 |
Miller-Wilson, Elijah S (16)
|
MALMAC |
|
1:01.01 |
- |
| 8 |
Belkadi, Ameen H (15)
|
MAWA |
59.48 |
1:01.83 |
2.35 |
| 9 |
Rankin, Patrick J (15)
|
MALYM |
1:08.22 |
1:10.40 |
2.18 |
| 10 |
Dileo, Graham (16)
|
MAACAC |
1:10.72 |
1:11.08 |
0.36 |
| 11 |
Rasmussen, Alexander B (15)
|
MAWA |
1:38.93 |
1:26.18 |
-12.75 |
| 12 |
Rankin, Connor E (15)
|
MALYM |
1:37.79 |
1:32.20 |
-5.59 |
|
Branes-Huff, Luke T (15)
|
MARAD |
|
DQ |
- |
|
Chalissery, Francis G (16)
|
MALMAC |
1:05.76 |
NS |
- |
|
Unger, Brian D (16)
|
MALMAC |
1:02.96 |
NS |
- |
|
Mlodzienski, Nicholas J (16)
|
MARAD |
55.56 |
NS |
- |