| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Hill, Tyler S (15)
|
MRBGNW |
47.75 |
49.95 |
2.20 |
| 2 |
San Martin, Nicholas G (15)
|
MRSPAR |
52.85 |
52.76 |
-0.09 |
| 3 |
McLaughlin, Mark W (15)
|
MRBGNW |
50.38 |
52.85 |
2.47 |
| 4 |
Glat, Brian S (15)
|
MRBGNW |
52.35 |
53.49 |
1.14 |
| 5 |
Sokolski, Michael V (17)
|
MRYMID |
53.21 |
53.61 |
0.40 |
| 6 |
Kaufmann, Garrett J (15)
|
MRBGNW |
51.87 |
53.63 |
1.76 |
| 7 |
Kleinsmith, Charles L (17)
|
MRBGNW |
52.42 |
53.70 |
1.28 |
| 8 |
Zheng, Raymond H (15)
|
MRBGNW |
53.16 |
54.42 |
1.26 |
| 9 |
Ford, Wesley A (15)
|
MRBGNW |
52.17 |
54.67 |
2.50 |
| 10 |
Delfico, Nicholas W (17)
|
MRBGNW |
52.80 |
55.42 |
2.62 |
| 11 |
Wachnik, Anthony A (17)
|
MRBGNW |
51.04 |
56.50 |
5.46 |
| 12 |
Nierhoff, Fabio (15)
|
MRBGNW |
55.10 |
57.33 |
2.23 |
| 13 |
Cevasco, James J (16)
|
MRSPAR |
57.87 |
57.84 |
-0.03 |
| 14 |
Moise, Vladimir (15)
|
MRSPAR |
1:04.53 |
58.91 |
-5.62 |
| 15 |
Lewis, Garfield (16)
|
MRYMID |
1:02.00 |
1:00.56 |
-1.44 |
| 16 |
Eng, Timothy (15)
|
MRBGNW |
1:01.38 |
1:01.82 |
0.44 |
| 17 |
Wall, Edward F (15)
|
MRYMID |
|
1:02.38 |
- |
| 18 |
Carlos, Alexander R (15)
|
MRSPAR |
1:02.23 |
1:02.57 |
0.34 |
| 19 |
Walsh, Alex (15)
|
MRSPAR |
1:20.32 |
1:08.60 |
-11.72 |
| 20 |
Heisler, Lucas D (17)
|
MRYMID |
1:06.82 |
1:08.96 |
2.14 |
| 21 |
McTeigue, Reese A (15)
|
MRYMID |
1:16.34 |
1:09.34 |
-7.00 |
| 22 |
Fairweather, Sheldon (15)
|
MRYMID |
|
1:13.33 |
- |