| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Hang, Kai V (11)
|
MAUPY |
41.13 |
43.10 |
1.97 |
| 1 |
Angelinas, Konstantinos (11)
|
MANEYS |
|
43.67 |
- |
| 2 |
Mui, Carter E (11)
|
MAPFY |
|
46.31 |
- |
| 3 |
Ferenz, Matthew J (11)
|
MABYNS |
|
46.33 |
- |
| 4 |
Tye, Harry I (12)
|
MABYNS |
49.53 |
49.57 |
0.04 |
| 5 |
Troy, William E (12)
|
MAGMAC |
|
50.10 |
- |
| 6 |
Schutta, Benjamin H (11)
|
MAFSS |
50.98 |
50.26 |
-0.72 |
| 7 |
Smith, Gavin S (12)
|
MABYNS |
|
50.48 |
- |
| 8 |
Jeffers, Issac M (11)
|
MAUPY |
52.95 |
54.94 |
1.99 |
| 9 |
Hauff, Jacob P (12)
|
MANEYS |
|
1:00.13 |
- |
| 10 |
Favre, Kaiden J (11)
|
MAUPY |
1:18.80 |
1:03.93 |
-14.87 |
| 11 |
Malaver, Sebastian F (11)
|
MANEYS |
|
1:08.12 |
- |
|
Raj, Joshua (12)
|
MAPENN |
|
NS |
- |
|
Hua, Andrew (11)
|
MARKRY |
|
NS |
- |