| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Gelinas, Paul S (14)
|
PNSMAC |
54.89 |
54.75 |
-0.14 |
| 2 |
Steiner, Nathan R (13)
|
ORHEAT |
58.28 |
56.87 |
-1.41 |
| 3 |
Thistlethwaite, William I (14)
|
ORLOSC |
58.41 |
56.90 |
-1.51 |
| 4 |
Williamson, Matthew A (14)
|
PNOCA |
56.40 |
56.92 |
0.52 |
| 5 |
Crafts, Amos (14)
|
ORPAC |
58.86 |
57.28 |
-1.58 |
| 6 |
Sanger, Frank J (14)
|
ORBLAC |
59.13 |
58.11 |
-1.02 |
| 7 |
Yu, Kevin (13)
|
ORBLAC |
57.37 |
58.20 |
0.83 |
| 8 |
Wu, Derek G (14)
|
ORLOSC |
58.13 |
58.39 |
0.26 |
| 9 |
Matsumoto, Leona A (13)
|
PCDACA |
58.29 |
58.42 |
0.13 |
| 10 |
Knobelspiesse, Nathan R (13)
|
ORTEAM |
59.18 |
59.04 |
-0.14 |