| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Montgomery, Colten B (18)
|
SNUCD |
20.22 |
20.75 |
0.53 |
| 2 |
Klotz, Matthew J (18)
|
SNSMST |
21.00 |
20.98 |
-0.02 |
| 3 |
Mork, Nehemiah S (16)
|
MIKRON |
21.24 |
21.17 |
-0.07 |
| 4 |
Berry, Christian M (16)
|
SEMTAC |
20.99 |
21.38 |
0.39 |
| 5 |
Patterson, Connar J (17)
|
NEEST |
21.60 |
21.46 |
-0.14 |
| 5 |
Lorr, James M (17)
|
PNOCA |
20.90 |
21.46 |
0.56 |
| 7 |
Staka, Christopher B (16)
|
PCCAB |
21.80 |
21.47 |
-0.33 |
| 8 |
Chain, Christopher L (16)
|
MSSCSO |
21.24 |
21.49 |
0.25 |
| 9 |
Anaya, Robert T (16)
|
STCBA |
22.11 |
21.55 |
-0.56 |
| 10 |
Arnold, Gregory S (18)
|
AMANSC |
21.70 |
21.59 |
-0.11 |
| 10 |
Huerta, Jacob A (17)
|
STCBA |
21.50 |
21.59 |
0.09 |
| 12 |
Pappas, George K (17)
|
IAL4A |
21.40 |
21.63 |
0.23 |
| 13 |
Stevens, Cole P (16)
|
PCOAPB |
22.00 |
21.72 |
-0.28 |