| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Rosa, Michael A (17)
|
ILACAD |
|
56.00 |
- |
| 2 |
Chuang, Ethan A (17)
|
ILACAD |
|
56.96 |
- |
| 3 |
Gerber, Jeffrey T (16)
|
PVMACH |
|
58.26 |
- |
| 4 |
Schuster, Nicholas A (16)
|
WIWEST |
|
58.66 |
- |
| 5 |
Han, Steve S (17)
|
PVNCAP |
|
58.73 |
- |
| 6 |
Li, Alan H (17)
|
PVASA |
|
58.75 |
- |
| 7 |
Yu, Alan (16)
|
PVDRAG |
|
58.98 |
- |
| 8 |
Aguirre, Austin P (17)
|
CASMSC |
|
59.39 |
- |
| 9 |
Feliciano, Collin T (16)
|
VASTAT |
|
59.66 |
- |
| 10 |
Waldusky, Preston P (17)
|
ILFOX |
|
59.88 |
- |
| 11 |
Depiero, Nathan C (16)
|
SCTG |
|
1:00.10 |
- |
| 12 |
Groenewold, Calvin G (16)
|
ILULT |
|
1:00.19 |
- |
| 13 |
Tran, Phong Q (17)
|
AMRXA |
|
1:00.42 |
- |
| 14 |
Smith, Connor A (18)
|
SEPCST |
|
1:03.04 |
- |
| 15 |
Thorell, Jack E (17)
|
ILHSC |
|
1:03.40 |
- |
|
Wlodarz, Adrian T (17)
|
ILRA |
|
DQ |
- |