| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Fish, Evan (9)
|
ADDELM |
53.57 |
53.96 |
0.39 |
| 2 |
West, Harper L (10)
|
ADSCHE |
1:05.40 |
56.10 |
-9.30 |
| 3 |
Cohen, Benjamin (10)
|
ADDELM |
1:17.34 |
58.41 |
-18.93 |
| 4 |
Steward, Harvey C (9)
|
ADKING |
1:02.69 |
58.91 |
-3.78 |
| 5 |
Ewing-Van Deloo, Austin A (10)
|
ADJJSC |
1:03.75 |
1:00.44 |
-3.31 |
| 6 |
Greenwood, Caleb K (10)
|
ADSCHE |
1:03.83 |
1:00.62 |
-3.21 |
| 7 |
Sheppard-Gould, Odysseus S (9)
|
ADHAWK |
1:01.99 |
1:01.80 |
-0.19 |
| 8 |
Forbush, Henry (9)
|
ADDELM |
1:02.39 |
1:03.31 |
0.92 |
| 9 |
Torborg, Benjamin J (10)
|
ADHAWK |
1:20.60 |
1:13.87 |
-6.73 |
|
Hulihan, Milo (10)
|
ADDELM |
1:20.09 |
DQ |
- |
|
Robinson, Benjamin J (9)
|
ADSCHE |
1:01.35 |
NS |
- |