| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Heilman, Thomas A (15)
|
VACA-Y |
56.83 |
59.13 |
2.30 |
| 2 |
Moore, Maxwell B (17)
|
VACA-Y |
58.74 |
59.50 |
0.76 |
| 3 |
Smith, Jack G (17)
|
VACA-Y |
56.86 |
1:02.42 |
5.56 |
| 4 |
Browne, William H (15)
|
VACA-Y |
59.84 |
1:02.74 |
2.90 |
| 5 |
Schundler, Charles J (18)
|
VACA-Y |
58.92 |
1:04.26 |
5.34 |
| 6 |
Wang, Richard H (15)
|
VACA-Y |
1:06.59 |
1:05.57 |
-1.02 |
| 7 |
King, David W (16)
|
VACA-Y |
1:03.93 |
1:06.02 |
2.09 |
| 8 |
Zhu, Aiden (15)
|
VACA-Y |
1:05.01 |
1:07.00 |
1.99 |
| 9 |
Ding, Aiden C (15)
|
VACA-Y |
1:04.26 |
1:07.64 |
3.38 |
| 10 |
Olson, Thomas S (16)
|
VACA-Y |
1:05.05 |
1:09.51 |
4.46 |
| 11 |
Nicholson, Jeremiah P (15)
|
VACA-Y |
1:04.62 |
1:09.54 |
4.92 |
| 12 |
Garono, Anthony D (18)
|
VACA-Y |
1:10.85 |
1:10.77 |
-0.08 |
| 13 |
Marshall, Connor A (16)
|
VACA-Y |
1:10.10 |
1:12.47 |
2.37 |
| 14 |
Cao, Daniel Q (15)
|
VACA-Y |
1:21.30 |
1:13.94 |
-7.36 |
| 15 |
Dowd, Valentin H (16)
|
VACA-Y |
1:15.63 |
1:14.69 |
-0.94 |
| 16 |
Halbert, Dylan S (15)
|
VACA-Y |
1:21.78 |
1:14.95 |
-6.83 |