| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Browne, William H (17)
|
VACA-Y |
45.03 |
46.80 |
1.77 |
| 2 |
Moore, Maxwell B (18)
|
VACA-Y |
47.10 |
48.29 |
1.19 |
| 3 |
Hathaway, Jacques T (16)
|
VABASS |
48.34 |
49.43 |
1.09 |
| 4 |
Easton, Chase J (15)
|
VACA-Y |
46.52 |
50.55 |
4.03 |
| 5 |
Buckner, Theodore S (17)
|
VABASS |
49.91 |
51.06 |
1.15 |
| 6 |
Wang, Richard H (17)
|
VACA-Y |
47.60 |
51.07 |
3.47 |
| 7 |
Marshall, Connor A (17)
|
VACA-Y |
51.95 |
51.56 |
-0.39 |
| 8 |
Zhu, Aiden (17)
|
VACA-Y |
49.96 |
52.52 |
2.56 |
| 9 |
Syms, Jacob C (15)
|
VABASS |
51.88 |
52.88 |
1.00 |
| 10 |
Wispelwey, Garrett S (15)
|
VACA-Y |
53.26 |
53.55 |
0.29 |
| 11 |
Oswald, Aiden C (15)
|
VASMAC |
55.20 |
54.43 |
-0.77 |
| 12 |
Hines, Malaki D (15)
|
VABASS |
1:01.14 |
1:02.94 |
1.80 |
| 13 |
Hockman, Nicholas E (17)
|
VABASS |
1:05.20 |
1:04.48 |
-0.72 |
| 14 |
Dawson, Asher (15)
|
VACA-Y |
1:04.54 |
1:06.80 |
2.26 |
|
Bakich, Jack L (15)
|
VACA-Y |
1:01.07 |
NS |
- |
|
Bergmann, Theodor N (16)
|
VACA-Y |
48.92 |
NS |
- |
|
King, Brayden D (16)
|
VACA-Y |
50.22 |
NS |
- |
|
Zevgolis, John Louis M (16)
|
VACA-Y |
52.47 |
NS |
- |