| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Jimenez, Jaime R (19)
|
MRUN |
|
55.41 |
- |
| 2 |
Jimenez, Hallester (15)
|
MRAPEX |
56.58 |
57.15 |
0.57 |
| 3 |
Oliveira, Fernando (16)
|
MRUN |
58.83 |
59.16 |
0.33 |
| 4 |
Saffiddine, Mohamed (15)
|
MRNYCP |
1:04.45 |
1:03.59 |
-0.86 |
| 5 |
Muminovic, Alem (15)
|
MRUN |
1:04.95 |
1:03.85 |
-1.10 |
| 6 |
Diaz, Adam C (13)
|
MRRED |
1:07.18 |
1:04.63 |
-2.55 |
| 7 |
Lopez, Joseph G (13)
|
MRAPEX |
1:04.67 |
1:05.48 |
0.81 |
| 8 |
Guzman, Michael A (15)
|
MRRED |
1:06.63 |
1:05.94 |
-0.69 |
| 9 |
Truong, Donald B (12)
|
MRHS |
1:07.31 |
1:06.06 |
-1.25 |
| 10 |
Wong, Yan Son (15)
|
MRLSA |
1:14.24 |
1:07.38 |
-6.86 |
| 11 |
Sanchez, Ronald (14)
|
MRAPEX |
1:07.04 |
1:08.62 |
1.58 |
| 12 |
Samko, Jack P (14)
|
MRHS |
1:14.04 |
1:09.09 |
-4.95 |
| 13 |
Paragas, Luke (14)
|
MRUN |
1:18.00 |
1:10.00 |
-8.00 |
| 14 |
Equiano, Jason A (13)
|
MRAPEX |
1:09.79 |
1:10.29 |
0.50 |
| 15 |
Salimbeni, Marco J (14)
|
MRLSA |
1:18.50 |
1:12.24 |
-6.26 |
| 16 |
Mezzoli, Davide (13)
|
MRUN |
1:09.90 |
1:12.68 |
2.78 |
| 17 |
Pena, Becquer D (15)
|
MRAPEX |
1:14.26 |
1:13.66 |
-0.60 |
| 18 |
Salimbeni, Matteo B (14)
|
MRLSA |
1:29.93 |
1:16.27 |
-13.66 |
| 19 |
DeLeon, Ismeal R (14)
|
MRKBM |
1:16.54 |
1:16.97 |
0.43 |
| 20 |
Juncaj, Bernard A (15)
|
MRAPEX |
1:13.82 |
1:17.09 |
3.27 |
| 21 |
Bubrowiecki, Sebastian (14)
|
MRHS |
1:22.38 |
1:17.52 |
-4.86 |
| 22 |
Villegas, James J (14)
|
MRRED |
1:12.57 |
1:18.05 |
5.48 |
| 23 |
Muir, Christopher D (13)
|
MRHS |
1:23.00 |
1:18.13 |
-4.87 |
| 24 |
Fernandez, Ryan (13)
|
MRYMID |
|
1:22.99 |
- |
| 25 |
Weisburg, Alexander L (14)
|
MRAPEX |
1:24.31 |
1:23.26 |
-1.05 |
| 26 |
Pineda, Victor A (14)
|
MRRED |
1:23.25 |
1:24.58 |
1.33 |
| 27 |
Nunez, Yordy (17)
|
MRKBM |
1:22.38 |
1:25.44 |
3.06 |
| 28 |
Ocasio, Jayden (13)
|
MRKBM |
1:55.21 |
1:38.40 |
-16.81 |
|
Valadez, Romulo G (15)
|
MRAPEX |
1:03.01 |
NS |
- |
|
Blancas, Edwin (14)
|
MRAPEX |
|
NS |
- |