| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Peng, Thomas F (10)
|
MRWEST |
42.40 |
42.31 |
-0.09 |
| 2 |
Cornish, Jack A (10)
|
MRWEST |
44.73 |
44.45 |
-0.28 |
| 3 |
Chariah, Joshua S (9)
|
MRLGAC |
45.77 |
46.92 |
1.15 |
| 4 |
Nuñez Barreras, Javier (10)
|
FENI |
48.37 |
46.98 |
-1.39 |
| 5 |
Buchanan, Chase C (10)
|
MRNFS |
47.00 |
47.49 |
0.49 |
| 6 |
Halls, Ryan A (10)
|
MRNFS |
48.64 |
49.21 |
0.57 |
| 7 |
Lopez, Joseph G (10)
|
MRAPEX |
46.84 |
49.71 |
2.87 |
| 8 |
Ge, Tristan Q (10)
|
MRLGAC |
53.16 |
50.80 |
-2.36 |
| 9 |
Romej, Alex (10)
|
MRLGAC |
49.51 |
51.06 |
1.55 |
| 10 |
Salas, Alejandro H (10)
|
MRNCAC |
48.00 |
52.66 |
4.66 |
| 11 |
Jones, Micah S (9)
|
MRRED |
50.96 |
54.02 |
3.06 |
| 12 |
Sungrab, Henry T (9)
|
MRLGAC |
59.76 |
54.12 |
-5.64 |
| 13 |
Smith, Jamar (9)
|
MRNFS |
53.98 |
54.51 |
0.53 |
| 14 |
Gjertsen, Owen G (8)
|
MRWEST |
54.61 |
55.44 |
0.83 |
| 15 |
Corcuera, Christian L (8)
|
MRLGAC |
56.05 |
55.69 |
-0.36 |
| 16 |
Langerfeld, Robert (9)
|
MRWEST |
58.70 |
56.53 |
-2.17 |
| 17 |
Sorokin, Ivan (8)
|
MRMPNY |
58.14 |
57.10 |
-1.04 |
| 18 |
Pasumarthi, Arya (10)
|
MRLGAC |
55.97 |
57.43 |
1.46 |
| 19 |
McWilliam, Andrew J (10)
|
MRCIY |
1:00.17 |
58.06 |
-2.11 |
| 20 |
Chang, Matthew A (8)
|
MRFLY |
56.52 |
58.31 |
1.79 |
| 21 |
Reynolds, Owen (9)
|
MRRED |
1:04.63 |
58.52 |
-6.11 |
| 22 |
Gonzalez, Alejandro (9)
|
MRAPEX |
56.19 |
58.64 |
2.45 |
| 23 |
Muñoz, Lucas (10)
|
EM |
1:01.82 |
1:00.37 |
-1.45 |
| 24 |
Grushovenko, David (8)
|
MRMPNY |
58.54 |
1:00.72 |
2.18 |
| 25 |
Gutin, Noah (7)
|
MRMPNY |
1:02.69 |
1:01.59 |
-1.10 |
| 26 |
Perdomo, Miguel Alfonso (10)
|
TITA |
56.38 |
1:01.70 |
5.32 |
| 27 |
Turi, Abel (9)
|
MRRED |
1:01.93 |
1:01.73 |
-0.20 |
| 28 |
Barrett, Noland A (7)
|
MRWEST |
1:06.64 |
1:02.31 |
-4.33 |
| 29 |
Roberts, Shane W (9)
|
MRNFS |
1:03.00 |
1:03.04 |
0.04 |
| 30 |
Belyakov, Mihail (7)
|
MRMPNY |
1:04.56 |
1:03.12 |
-1.44 |
| 31 |
Krishnan, Ajay (8)
|
MRFLY |
1:01.87 |
1:03.23 |
1.36 |
| 32 |
Leta, Jhoseph (9)
|
TITA |
1:02.02 |
1:03.79 |
1.77 |
| 33 |
Fass, Liam G (10)
|
MRSS |
1:03.86 |
1:05.55 |
1.69 |
| 34 |
Soltowski, Alexander (9)
|
MRCFJV |
1:09.02 |
1:07.92 |
-1.10 |
| 35 |
Gelvez-Cisneros, Alexander (8)
|
MRLGAC |
1:02.73 |
1:14.28 |
11.55 |
| 36 |
Durant, Kyle J (8)
|
MRKBM |
1:17.31 |
1:14.64 |
-2.67 |
|
Infante Carrera, Diego (9)
|
TITA |
1:18.00 |
DQ |
- |
|
Chavez, Carlos A (8)
|
MRAPEX |
1:18.86 |
NS |
- |
|
Horiuchi, Carlos H (7)
|
MRLGAC |
1:08.42 |
NS |
- |
|
Sullivan, Patrick J (9)
|
MRPAC |
57.63 |
NS |
- |