| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Bartels, Tyler J (10)
|
LARRAC |
50.95 |
48.05 |
-2.90 |
| 2 |
Wynn, Wesley B (9)
|
LACLAC |
55.35 |
48.66 |
-6.69 |
| 3 |
Lipp, Sean P (10)
|
NTMTRO |
59.49 |
49.80 |
-9.69 |
| 4 |
Daniel, Daniel A (10)
|
NTTRAC |
|
51.19 |
- |
| 5 |
Quinlan, Brady M (10)
|
LACOSS |
1:12.28 |
56.43 |
-15.85 |
| 6 |
Martin, Victor J (9)
|
LASPAR |
57.99 |
57.16 |
-0.83 |
| 7 |
Cutrer, Reed B (10)
|
LACOAS |
|
57.46 |
- |
| 8 |
Watts, Alan H (9)
|
LACLAC |
1:10.32 |
1:03.26 |
-7.06 |
| 9 |
Wilson, Ellis J (9)
|
LACOSS |
|
1:03.49 |
- |
| 10 |
McPherson, Ewan O (10)
|
LACOSS |
1:05.69 |
1:06.98 |
1.29 |
| 11 |
Shepherd, Kaden W (10)
|
LASPAR |
1:12.79 |
1:08.09 |
-4.70 |
| 12 |
Griffith, Parker D (9)
|
LACOSS |
1:07.45 |
1:10.84 |
3.39 |
| 13 |
McPherson, Ian O (10)
|
LACOSS |
1:13.70 |
1:10.93 |
-2.77 |
| 14 |
Ingalls, Franklin G (10)
|
LACOAS |
|
1:11.15 |
- |
| 15 |
Flynn, Alexander K (9)
|
LACOAS |
|
1:16.18 |
- |
| 16 |
Melton, Owen M (9)
|
LARRAC |
|
1:22.35 |
- |
|
Sketo, Parker W (9)
|
LACOAS |
|
DQ |
- |
|
Susilovich, Charlie D (9)
|
LACOSS |
|
DQ |
- |
|
Cox, Shepherd A (9)
|
LARRAC |
|
DQ |
- |