| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Murphy, Brayden J (16)
|
PCRENO |
|
47.18 |
- |
| 2 |
Calderwood, John F (15)
|
GUDADS |
|
47.23 |
- |
| 3 |
Fernandes, Guy G (17)
|
FGFLA |
|
47.33 |
- |
| 4 |
Lienhart, Banistre L (17)
|
ILHOSC |
|
47.64 |
- |
| 5 |
Fisk, Tucker D (15)
|
SNUN |
|
47.73 |
- |
| 6 |
Sprague, Luke A (18)
|
NEAAC |
|
47.98 |
- |
| 7 |
Mizelle, Scott M (15)
|
VANOVA |
|
48.02 |
- |
| 8 |
Swanson, Charles A (16)
|
VANOVA |
|
48.65 |
- |
| 9 |
Reid, Alexander J (17)
|
FGFLA |
|
48.80 |
- |
| 10 |
Baptist, Dylan A (17)
|
CARTLR |
|
48.90 |
- |
| 11 |
Beynars, Ernest V (18)
|
SNUN |
|
48.96 |
- |
| 12 |
Noel, Jake W (16)
|
ILMMSC |
|
49.13 |
- |
| 13 |
Grosshans, Clark S (17)
|
ILWEST |
|
49.27 |
- |
| 14 |
Towar, Benjamin C (18)
|
CARTLR |
|
49.37 |
- |
| 15 |
Halliburton, Trevor J (15)
|
OZFAST |
|
49.72 |
- |
| 15 |
Swanson, Jack H (16)
|
MNAQJT |
|
49.72 |
- |
| 17 |
White, Sean J (15)
|
FLTBAY |
|
49.74 |
- |
| 18 |
Huber-Wilker, Kenyon T (18)
|
PVAAC |
|
49.81 |
- |
| 19 |
Petersen, Kevin A (16)
|
VATAC |
|
49.93 |
- |
| 20 |
Anderson, Matthew K (16)
|
GUTWST |
|
50.04 |
- |
| 21 |
Tremmel, Anthony J (17)
|
ILCWAC |
|
50.14 |
- |
|
Andrews, Theo J (15)
|
PCNBA |
|
NS |
- |