| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Lee, Thirachon G (11)
|
MRLGAC |
55.47 |
55.93 |
0.46 |
| 2 |
Corcuera, Christopher (12)
|
MRLGAC |
1:07.10 |
59.05 |
-8.05 |
| 3 |
Shao, Aiden (11)
|
MRFLY |
59.13 |
1:00.20 |
1.07 |
| 4 |
Gonzalez-Chang, Ian (12)
|
MRCENT |
1:01.35 |
1:01.12 |
-0.23 |
| 5 |
Shim, Peter W (12)
|
MRFLY |
1:04.77 |
1:03.92 |
-0.85 |
| 6 |
XU, Eric (12)
|
MRLGAC |
1:01.94 |
1:04.11 |
2.17 |
| 7 |
Lyashchenko, Alexander S (11)
|
MRLGAC |
1:05.06 |
1:06.09 |
1.03 |
| 8 |
Liu, Ziyuan (12)
|
MRLGAC |
1:08.33 |
1:06.50 |
-1.83 |
| 9 |
Soeda, Hiroki (12)
|
MRCENT |
1:07.48 |
1:08.55 |
1.07 |
| 10 |
Kharazishvili, Jason (12)
|
MRCENT |
1:09.58 |
1:11.47 |
1.89 |
| 11 |
Aguilar, Emiliano (12)
|
MRRED |
1:13.20 |
1:11.56 |
-1.64 |
| 12 |
Prada, Isaac (11)
|
MRFLY |
1:15.29 |
1:15.65 |
0.36 |
| 13 |
Rafailov, Liam (12)
|
MRCENT |
1:18.22 |
1:15.90 |
-2.32 |
| 14 |
Xochicale, Ryan N (11)
|
MRLGAC |
1:19.25 |
1:19.22 |
-0.03 |
| 15 |
Dorjee, Kunga (12)
|
MRLGAC |
1:30.94 |
1:21.15 |
-9.79 |
| 16 |
Santiago-Otero, Jonathys E (11)
|
MRKBM |
1:29.99 |
1:21.24 |
-8.75 |
| 17 |
Guo, Owen (11)
|
MRFLY |
1:33.19 |
1:23.32 |
-9.87 |
| 18 |
Peng, Klayton (12)
|
MRCENT |
1:29.92 |
1:23.40 |
-6.52 |
| 19 |
Zhang, Austin (11)
|
MRCENT |
1:29.60 |
1:30.69 |
1.09 |
| 20 |
Sun, Jerry (11)
|
MRCENT |
1:47.50 |
1:31.83 |
-15.67 |
| 21 |
Garica, Neisten J (12)
|
MRKBM |
1:35.58 |
1:35.99 |
0.41 |
| 22 |
Hartman, Michael (11)
|
MRCENT |
1:37.65 |
1:36.14 |
-1.51 |
| 23 |
Yao, Christian (12)
|
MRCENT |
1:49.57 |
1:43.31 |
-6.26 |