| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Law, Ethan (17)
|
MRMPNY |
51.73 |
52.21 |
0.48 |
| 2 |
Guan, Zhengyang (15)
|
NJUN |
51.75 |
52.32 |
0.57 |
| 3 |
Dorsey-Reyes, Daijin (15)
|
MRMAKO |
54.13 |
53.42 |
-0.71 |
| 4 |
Korzenik, Benjamin M (15)
|
MRMAKO |
56.13 |
57.12 |
0.99 |
| 5 |
Ng, Dylan (18)
|
MRMAKO |
56.65 |
57.44 |
0.79 |
| 6 |
Bogen, Jacob E (17)
|
MRRFAC |
55.19 |
57.79 |
2.60 |
| 7 |
Chaston, Gareth J (15)
|
MRMAKO |
1:00.21 |
57.88 |
-2.33 |
| 8 |
Yu, Stanley (16)
|
MRMPNY |
57.80 |
57.99 |
0.19 |
| 9 |
Idelchik, Benjamin (17)
|
MRMPNY |
58.19 |
58.09 |
-0.10 |
| 10 |
Cho, Jonathan C (15)
|
MRCOND |
57.27 |
58.17 |
0.90 |
| 11 |
Juricic, Daniel H (16)
|
MRMAKO |
58.27 |
58.23 |
-0.04 |
| 12 |
Finnerty, William K (17)
|
MRCOND |
57.98 |
58.38 |
0.40 |
| 13 |
Guo, Jonathan Y (15)
|
MRLIAC |
1:02.85 |
58.49 |
-4.36 |
| 14 |
Levy, Nien N (15)
|
MRCOND |
57.22 |
1:00.22 |
3.00 |
| 15 |
Kuznetsov, Gregory F (16)
|
MRMPNY |
1:01.01 |
1:00.53 |
-0.48 |
| 16 |
Merone, Matthew F (17)
|
MRCOND |
55.65 |
1:00.66 |
5.01 |
| 17 |
Agranovich, Jake M (15)
|
MRCOND |
59.94 |
1:00.91 |
0.97 |
| 18 |
Rau, Patrick (17)
|
MRLIAC |
1:03.05 |
1:02.48 |
-0.57 |
| 19 |
Choi, Ethan Y (16)
|
MRCOND |
1:03.41 |
1:02.63 |
-0.78 |
| 20 |
Arellano, Joshua (16)
|
MRMAKO |
1:02.82 |
1:02.64 |
-0.18 |
| 21 |
Weigand, Brian P (15)
|
MRLIAC |
1:09.99 |
1:03.37 |
-6.62 |
| 22 |
Mora, Sebastian J (15)
|
MRLIAC |
1:01.17 |
1:03.47 |
2.30 |
| 23 |
Davidovich, Tyler (15)
|
MRMPNY |
1:19.90 |
1:03.65 |
-16.25 |
| 24 |
Bates, Andrew H (15)
|
MRAGUA |
1:03.80 |
1:03.99 |
0.19 |
| 25 |
Pekarchuk, Yaroslav (16)
|
MRCOND |
1:06.02 |
1:05.68 |
-0.34 |
| 26 |
Hernandez, Noah M (16)
|
MRLIAC |
1:10.05 |
1:11.60 |
1.55 |