| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Stange, Andrew R (15)
|
MRTVSC |
52.21 |
52.29 |
0.08 |
| 2 |
Burke, Ryan M (17)
|
MRTVSC |
54.56 |
55.95 |
1.39 |
| 3 |
Kohlus, Robert W (16)
|
MRTVSC |
58.27 |
58.14 |
-0.13 |
| 4 |
Monteverde, Joseph M (15)
|
MRIA |
57.19 |
58.74 |
1.55 |
| 5 |
Kilgore, Eric H (16)
|
MRTVSC |
57.90 |
58.98 |
1.08 |
| 6 |
Gilmore, Brandon J (17)
|
MRIA |
56.51 |
59.20 |
2.69 |
| 7 |
McDougall, Robert J (17)
|
MRCSC |
58.64 |
59.99 |
1.35 |
| 8 |
Robertson, Patrick W (17)
|
MRTVSC |
59.22 |
1:01.49 |
2.27 |
| 9 |
Li, Peter Z (17)
|
MRTVSC |
1:01.11 |
1:02.48 |
1.37 |
| 10 |
Huner, Jack Z (16)
|
MRTVSC |
1:01.53 |
1:03.12 |
1.59 |
| 11 |
Sanders, Peter B (15)
|
MRTVSC |
1:06.94 |
1:09.08 |
2.14 |
| 12 |
Gianchetta, Derek (15)
|
MRHYB |
1:18.64 |
1:30.49 |
11.85 |
|
Brown, Liam K (15)
|
MRTVSC |
1:10.40 |
NS |
- |