| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
O'Donnell, Kevin J (7)
|
MRBGNW |
46.08 |
45.78 |
-0.30 |
| 2 |
Bice, Cormick R (7)
|
MRQNS |
49.24 |
49.02 |
-0.22 |
| 3 |
Bouzarouata, Adam N (7)
|
MRLGAC |
45.76 |
49.35 |
3.59 |
| 4 |
Sun, Qingyu (7)
|
MRAGUA |
58.56 |
51.77 |
-6.79 |
| 5 |
Tchernikov, Phillip A (7)
|
MRCOND |
57.70 |
53.71 |
-3.99 |
| 6 |
Serafin, Oren B (7)
|
MRLIE |
59.23 |
57.52 |
-1.71 |
| 7 |
Ratling, Phuntsok W (7)
|
MRLGAC |
1:10.69 |
1:01.57 |
-9.12 |
| 8 |
Cohen, Hayden S (7)
|
MRRA |
57.66 |
1:06.66 |
9.00 |
| 9 |
Bregman, Nathan R (7)
|
MRLBA |
|
1:07.03 |
- |
| 10 |
Vasquez, Alejandro (6)
|
MRCOND |
1:10.00 |
1:08.92 |
-1.08 |
|
Trenczer, Quincy A (6)
|
MRCOND |
1:20.00 |
DQ |
- |
|
Lo Verde, Leonardo (7)
|
MRHES |
1:11.56 |
DQ |
- |
|
Akdas, Jason (7)
|
MRLGAC |
57.82 |
DQ |
- |
|
Bartolacci, Matthew M (7)
|
MRRA |
1:25.00 |
DQ |
- |
|
Cullen, Phinehas J (7)
|
MRWISC |
1:39.99 |
DQ |
- |