| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Driesse, Lincoln J (8)
|
LATAQ |
54.54 |
55.85 |
1.31 |
| 2 |
De Luna, James R (8)
|
LACRAW |
1:01.84 |
57.39 |
-4.45 |
| 3 |
Fudge, Hunter S (8)
|
LACRAW |
|
1:03.79 |
- |
| 4 |
Jones, Brady W (8)
|
LATAQ |
1:04.37 |
1:04.56 |
0.19 |
| 5 |
Himel, Ian B (8)
|
LASLST |
|
1:14.83 |
- |
| 6 |
Harcher, McKeon B (7)
|
LASLST |
|
1:15.28 |
- |
| 7 |
Cho, Justin H (8)
|
LASLST |
|
1:15.41 |
- |
| 8 |
Hirsh, Henry W (8)
|
LAHSC |
|
1:17.58 |
- |
| 9 |
Ayer, Samuel C (8)
|
LATAQ |
1:18.05 |
1:22.52 |
4.47 |
| 10 |
Nguyen, Minh-Quan D (8)
|
LACRAW |
|
1:24.95 |
- |
|
Vashistha, Smit (7)
|
LAPAC |
|
DQ |
- |
|
Kairschner, Cabbott P (8)
|
LARRAC |
|
DQ |
- |