| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Smith, Henry C (11)
|
VACA-Y |
1:09.86 |
1:07.01 |
-2.85 |
| 2 |
Wispelwey, Garrett S (12)
|
VACA-Y |
1:12.69 |
1:10.37 |
-2.32 |
| 3 |
Charlton, Benjamin S (11)
|
VACA-Y |
1:11.67 |
1:11.04 |
-0.63 |
| 4 |
Rutherford, Eli J (11)
|
VACA-Y |
1:14.06 |
1:12.10 |
-1.96 |
| 5 |
Morrison, Luke N (12)
|
VALY |
1:15.49 |
1:14.80 |
-0.69 |
| 6 |
Binter, Zachary W (11)
|
VACA-Y |
1:39.09 |
1:18.63 |
-20.46 |
| 7 |
Wu, Caleb C (11)
|
VALY |
1:26.55 |
1:20.83 |
-5.72 |
| 8 |
Handy, Riley J (12)
|
VAVABR |
1:29.14 |
1:21.54 |
-7.60 |
| 9 |
Roberts, David A (11)
|
VACA-Y |
1:16.62 |
1:24.31 |
7.69 |
| 10 |
Lawrence, Jack O (12)
|
VAVABR |
1:30.72 |
1:24.53 |
-6.19 |
| 11 |
DelBene, Miles R (11)
|
VALY |
1:26.54 |
1:26.00 |
-0.54 |
| 12 |
Cullaty, Gabriel R (11)
|
VACA-Y |
1:29.48 |
1:26.24 |
-3.24 |
| 13 |
Porter, Owen H (11)
|
VALY |
1:34.71 |
1:26.75 |
-7.96 |
| 14 |
Manson, Thomas B (11)
|
VACA-Y |
1:31.06 |
1:27.45 |
-3.61 |
|
Blair, Evan L (11)
|
VALY |
|
DQ |
- |
|
Mizuba, Maxton D (12)
|
VAVABR |
1:09.46 |
DQ |
- |