| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Arnold, Zachary R (12)
|
MRBAD |
36.75 |
37.61 |
0.86 |
| 2 |
Gonzalez, James (11)
|
MRAPEX |
37.97 |
37.90 |
-0.07 |
| 3 |
Del Rosario, Edmund Jacob C (12)
|
MRPATS |
37.80 |
38.82 |
1.02 |
| 4 |
Moody, Paul C (11)
|
MRPATS |
43.75 |
44.23 |
0.48 |
| 5 |
Mummery, John F (11)
|
MRNBS |
44.66 |
44.28 |
-0.38 |
| 6 |
Cheng, Russell A (12)
|
MRRA |
42.25 |
44.69 |
2.44 |
| 7 |
Flowers, Kevin (11)
|
MRNYCP |
40.80 |
44.89 |
4.09 |
| 8 |
Loveless, Ryan (11)
|
MRBAD |
42.94 |
46.01 |
3.07 |
| 9 |
Burgarelli, Sebastian (12)
|
MRNBS |
45.67 |
46.09 |
0.42 |
| 10 |
Robins, Benjamin I (11)
|
MRBAD |
50.52 |
54.31 |
3.79 |
| 11 |
Constancio, Markus A (11)
|
MRNBS |
1:01.04 |
1:00.45 |
-0.59 |
| 12 |
De Borba Silva, Lucas C (12)
|
MRRA |
56.15 |
DQ |
- |
| 13 |
Maher, Edward (11)
|
MRMCBY |
1:02.46 |
NS |
- |
| 14 |
Collazo, Joshua M (11)
|
MRAPEX |
1:05.42 |
NS |
- |