| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Senfield, Thomas G (14)
|
VASRVA |
50.56 |
52.63 |
2.07 |
| 2 |
Weaber, Aiden M (14)
|
VASMAC |
56.66 |
54.67 |
-1.99 |
| 3 |
Bill, Thomas H (14)
|
VAGATR |
55.28 |
56.15 |
0.87 |
| 4 |
Nylander, Jacob M (14)
|
VASMAC |
57.85 |
57.92 |
0.07 |
| 5 |
Stewart, Gunnar D (14)
|
VASMAC |
57.32 |
58.11 |
0.79 |
| 6 |
Zevgolis, John Louis M (14)
|
VASMAC |
58.19 |
59.13 |
0.94 |
| 7 |
Krasheninnikov, Albert (13)
|
VAGATR |
1:05.23 |
1:03.58 |
-1.65 |
| 8 |
Hankins, Jackson D (13)
|
VASMAC |
1:06.00 |
1:04.10 |
-1.90 |
| 9 |
Larson, Dietrich A (14)
|
VASMAC |
1:06.87 |
1:07.03 |
0.16 |
| 10 |
Znachonok, Michael (14)
|
VAGATR |
1:16.97 |
1:08.32 |
-8.65 |
| 11 |
Xu, Evan X (13)
|
VASMAC |
1:11.73 |
1:10.88 |
-0.85 |
| 12 |
Eberly, Isaac C (13)
|
VAGATR |
|
1:31.11 |
- |