| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Villalobos, Sebastian N (14)
|
CAPATH |
1:22.63 |
1:15.81 |
-6.82 |
| 2 |
Velazquez Coronado, Alfredo (13)
|
DELS |
1:18.39 |
1:15.96 |
-2.43 |
| 3 |
Rivera Muro, Luis Francisco (14)
|
DELS |
1:20.67 |
1:18.12 |
-2.55 |
| 4 |
Nikolaev, Timothy V (14)
|
AZFORD |
1:22.18 |
1:21.10 |
-1.08 |
| 5 |
Villalba Soto, Ayrton (14)
|
CENA |
1:18.33 |
1:22.90 |
4.57 |
| 6 |
Gil Valenzuela, Heriberto (16)
|
DELS |
1:23.26 |
1:24.07 |
0.81 |
| 7 |
Pierzina, Zack A (15)
|
AZAZAC |
1:28.01 |
1:25.36 |
-2.65 |
| 8 |
Sanchez Fortiz, Daniel (13)
|
TIB |
1:23.16 |
1:26.15 |
2.99 |
| 9 |
Litz, Owen C (14)
|
AZFAST |
1:24.53 |
1:26.26 |
1.73 |
| 10 |
Nguyen, Benjamin Q (14)
|
AZVC |
1:17.26 |
1:27.22 |
9.96 |
| 11 |
San Vicente Albar, Jose Luis (13)
|
TIB |
1:27.07 |
1:27.32 |
0.25 |
| 12 |
Xia, Michael (15)
|
AZFAST |
1:28.74 |
1:27.92 |
-0.82 |
| 13 |
Lynch, Jaden J (16)
|
AZAZAC |
1:27.51 |
1:28.66 |
1.15 |
| 14 |
Cindrich, Eli R (15)
|
AZFORD |
1:27.65 |
1:29.11 |
1.46 |
| 15 |
Aidinian, Nareg S (13)
|
BDSWAT |
1:27.48 |
1:30.99 |
3.51 |
| 16 |
Bai, Samuel Y (15)
|
AZFAST |
1:29.28 |
1:32.52 |
3.24 |
| 17 |
Valenzuela Galaz, Omar (16)
|
TIB |
1:34.86 |
1:38.74 |
3.88 |
|
Johnson, Michael P (15)
|
AZAZAC |
1:16.92 |
DQ |
- |
|
Millet, Xavien R (15)
|
AZAZAC |
1:13.95 |
NS |
- |
|
Zaetta, Nicholas R (16)
|
AZFORD |
1:34.64 |
NS |
- |