| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Teixeira, Anthony J (17)
|
NISKAN |
51.30 |
53.40 |
2.10 |
| 2 |
Fratto, Dominic (16)
|
NIGYFG |
59.91 |
56.16 |
-3.75 |
| 3 |
Shuron, Alexander W (16)
|
NISKAN |
56.67 |
57.99 |
1.32 |
| 4 |
Olivieri, Julian M (15)
|
NICAQY |
1:00.70 |
1:01.80 |
1.10 |
| 5 |
Johnsen, Alexander T (16)
|
NIGRAY |
|
1:03.92 |
- |
| 6 |
Rejman, J.D. (15)
|
NIAYST |
1:03.20 |
1:04.90 |
1.70 |
| 7 |
Dvorak, Colton (16)
|
COUN |
1:08.44 |
1:05.09 |
-3.35 |
| 8 |
Olivieri, Luca T (17)
|
NICAQY |
1:02.75 |
1:06.33 |
3.58 |
| 9 |
Snook, Troy (15)
|
NIGYFG |
1:08.61 |
1:08.44 |
-0.17 |
| 10 |
Eveland, Christian (16)
|
NIGYFG |
1:14.64 |
1:08.83 |
-5.81 |
| 11 |
Killian, Patrick (15)
|
NIKTYC |
1:07.09 |
1:10.38 |
3.29 |
| 12 |
Furnum, Blake J (16)
|
NICAQY |
1:07.86 |
1:10.57 |
2.71 |
| 13 |
Judd, Colton (16)
|
NIBYSD |
1:16.37 |
1:19.38 |
3.01 |
| 14 |
Mellors, Benjamin (16)
|
NIGRAY |
1:36.39 |
1:50.68 |
14.29 |
|
Sly, Harrison (15)
|
NIKTYC |
1:13.68 |
DNF |
-73.68 |