| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Shannon, Henry D (10)
|
ADKING |
41.00 |
40.43 |
-0.57 |
| 2 |
Wang, Alexander (10)
|
ADDELM |
47.08 |
45.72 |
-1.36 |
| 3 |
Jenkins, Levi R (10)
|
ADBSPA |
47.98 |
47.17 |
-0.81 |
| 4 |
O'Loughlin, John Jr E (9)
|
ADSSCY |
46.88 |
47.93 |
1.05 |
| 5 |
Lowery, Nathan F (9)
|
ADSSCY |
47.82 |
47.94 |
0.12 |
| 6 |
Burkhardt, Keegan J (10)
|
ADKING |
48.58 |
48.37 |
-0.21 |
| 7 |
McIntyre, James P (10)
|
ADBSPA |
51.08 |
50.15 |
-0.93 |
| 8 |
Vennard, Macen M (9)
|
ADDELM |
1:04.14 |
1:06.67 |
2.53 |
| 9 |
Adams, Matthew B (10)
|
ADBSPA |
1:08.22 |
1:07.36 |
-0.86 |
|
Goodfellow, Maxwell A (9)
|
ADADDI |
|
DQ |
- |
|
Keyes, Kyle G (10)
|
ADBSPA |
|
DQ |
- |
|
Stahlman, Anthony J (9)
|
ADBSPA |
|
DQ |
- |
|
Zalucky, Evan R (10)
|
ADBSPA |
|
DQ |
- |
|
Ogno, Luca D (10)
|
ADJJSC |
|
DQ |
- |
|
Young, Matthew W (10)
|
ADAMST |
1:30.68 |
NS |
- |
|
Molnar, Graydon (10)
|
ADBSPA |
|
NS |
- |