| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Fenton, Thomas E (18)
|
VALY |
57.78 |
1:01.23 |
3.45 |
| 2 |
Browne, William H (16)
|
VACA-Y |
59.60 |
1:01.43 |
1.83 |
| 3 |
Schonfelder, Maxwell C (17)
|
VALY |
58.19 |
1:01.76 |
3.57 |
| 4 |
King, David W (18)
|
VACA-Y |
1:01.62 |
1:02.15 |
0.53 |
| 5 |
Stevenson, Declund J (16)
|
VALY |
1:03.44 |
1:04.78 |
1.34 |
| 6 |
Emery, Simon B (17)
|
VALY |
1:01.09 |
1:05.25 |
4.16 |
| 7 |
Wang, Richard H (16)
|
VACA-Y |
1:04.36 |
1:05.26 |
0.90 |
| 8 |
Marshall, Connor A (17)
|
VACA-Y |
1:09.04 |
1:05.51 |
-3.53 |
| 9 |
Cullaty, John O (15)
|
VACA-Y |
1:04.14 |
1:06.81 |
2.67 |
| 10 |
Charlton, William P (15)
|
VACA-Y |
1:05.09 |
1:08.29 |
3.20 |
| 11 |
Bergmann, Theodor N (16)
|
VACA-Y |
1:08.52 |
1:09.33 |
0.81 |
| 12 |
Easton, Chase J (15)
|
VACA-Y |
1:08.91 |
1:09.42 |
0.51 |
| 13 |
Tungate, Benjamin L (15)
|
VACA-Y |
1:08.72 |
1:11.10 |
2.38 |
| 14 |
King, Brayden D (16)
|
VACA-Y |
1:09.23 |
1:11.40 |
2.17 |
| 15 |
Edwards, Joshua J (15)
|
VALY |
1:13.30 |
1:11.99 |
-1.31 |
| 16 |
Alexander, Charles T (15)
|
VACA-Y |
1:13.05 |
1:12.04 |
-1.01 |
| 17 |
Keatts, Caleb A (18)
|
VALY |
1:24.97 |
1:14.55 |
-10.42 |
| 18 |
Perrow, William A (17)
|
VALY |
1:20.41 |
1:19.00 |
-1.41 |
|
Snyder, Avery M (15)
|
VALY |
1:07.14 |
DQ |
- |