| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Huffman, William S (10)
|
VACA-Y |
46.05 |
44.92 |
-1.13 |
| 2 |
Minutella, Luca W (9)
|
VACA-Y |
49.18 |
47.71 |
-1.47 |
| 3 |
Beauchamp, William H (10)
|
VAFCFY |
50.09 |
49.02 |
-1.07 |
| 4 |
Jaskot, Sutton C (10)
|
VACA-Y |
50.68 |
50.21 |
-0.47 |
| 5 |
Loura, Paul D (10)
|
VACA-Y |
1:00.35 |
53.11 |
-7.24 |
| 6 |
Xie, Marcus (9)
|
VACA-Y |
57.26 |
55.98 |
-1.28 |
| 7 |
McKenney, Indiana A (10)
|
VACA-Y |
1:02.77 |
57.25 |
-5.52 |
| 9 |
Koscielny, Jefferson P (10)
|
VALY |
1:02.50 |
1:00.89 |
-1.61 |
| 10 |
Matz, Nathan J (9)
|
VACA-Y |
|
1:01.40 |
- |
| 11 |
Thomas, Brodie M (10)
|
VALY |
1:05.25 |
1:03.64 |
-1.61 |
| 12 |
Hoover, Walter L (9)
|
VACA-Y |
1:04.01 |
1:07.85 |
3.84 |
| 13 |
Flavin, James N (10)
|
VALY |
1:32.77 |
1:11.38 |
-21.39 |
|
Purcell, Calvin J (9)
|
VACA-Y |
|
DQ |
- |
|
Miller, Reece L (10)
|
VALY |
|
DQ |
- |