| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Cunningham, Joshua J (15)
|
MNMAKO |
|
57.58 |
- |
| 2 |
Barraza, Christopher L (16)
|
SEHSA |
|
58.50 |
- |
| 3 |
Benton, Gilbert J (17)
|
NMRACE |
|
59.22 |
- |
| 4 |
Nations, Grant M (18)
|
AZFORD |
|
59.26 |
- |
| 5 |
Tippett, Jeffrey W (17)
|
SEBAY |
|
59.31 |
- |
| 6 |
Groenewold, Calvin G (16)
|
ILULT |
|
59.57 |
- |
| 7 |
Keegan, Henry E (18)
|
NEBGSC |
|
1:00.30 |
- |
| 8 |
Saldin, Joseph G (17)
|
MNMAKO |
|
1:01.14 |
- |
| 9 |
Starr, Nicholas B (18)
|
WIOZ |
|
1:01.33 |
- |
| 10 |
Brearton, Jack D (16)
|
CATORR |
|
1:02.10 |
- |
| 11 |
Frakes, Ian M (16)
|
SEMCC |
|
1:02.25 |
- |
| 12 |
Ozgen, Erkan M (15)
|
ILHSC |
|
1:02.43 |
- |
| 13 |
Smith, Connor A (18)
|
SEPCST |
|
1:04.01 |
- |
| 14 |
Ozgen, Berkay E (17)
|
ILHSC |
|
1:09.21 |
- |
|
Tischke, John J (16)
|
ILHSC |
|
DQ |
- |