| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Martin, Giulian A (12)
|
FGCANE |
1:20.66 |
1:16.31 |
-4.35 |
| 2 |
Pereira, Alessandro (12)
|
FGAZFL |
1:17.67 |
1:16.56 |
-1.11 |
| 3 |
Pokatragool, Paul (12)
|
FGSAS |
1:21.88 |
1:18.16 |
-3.72 |
| 4 |
Wilkinson, Tyler K (12)
|
FGFAST |
1:23.18 |
1:18.56 |
-4.62 |
| 5 |
Gudino, Juanfrancisco F (12)
|
FGGRSC |
1:23.84 |
1:21.24 |
-2.60 |
| 6 |
Connors, Billy M (12)
|
FGWOW |
1:22.99 |
1:23.51 |
0.52 |
| 7 |
Guio, Sebastian (11)
|
FGMWA |
1:24.54 |
1:23.98 |
-0.56 |
| 8 |
Jones, Jake F (11)
|
FGPCS |
1:27.75 |
1:25.21 |
-2.54 |
| 9 |
Zhao, Kaideng (11)
|
FGSUN |
1:14.39 |
1:25.38 |
10.99 |
| 10 |
Rilo, Ares A (11)
|
FGSUN |
1:26.56 |
1:27.18 |
0.62 |
| 11 |
Plokhotnichenko, Ernest (12)
|
FGEA |
1:32.78 |
1:27.55 |
-5.23 |
| 12 |
Huertas, Andriy A (12)
|
FGMACM |
1:25.90 |
1:27.74 |
1.84 |
| 13 |
Curtis, Tyler E (12)
|
FGJDST |
1:23.00 |
1:27.96 |
4.96 |
| 14 |
Weingard, Luke (12)
|
FGMWA |
1:29.42 |
1:28.26 |
-1.16 |
| 15 |
Ruiz, Jesus F (11)
|
FGUN-1 |
1:33.18 |
1:28.27 |
-4.91 |
| 16 |
Hau, Derek (11)
|
FGSOFL |
1:18.51 |
1:28.40 |
9.89 |
| 17 |
Ortiz, Karvin Jay (12)
|
FGAZFL |
1:31.83 |
1:29.55 |
-2.28 |
| 18 |
Villalonga, Diego (12)
|
FGMWA |
1:33.37 |
1:30.09 |
-3.28 |
| 19 |
Karachun, Matviy (11)
|
FGYSF |
1:33.23 |
1:30.77 |
-2.46 |
| 20 |
Charnou, Maksim (12)
|
FGNMST |
1:33.66 |
1:30.83 |
-2.83 |
| 21 |
Landron, Rafael (11)
|
FGSUN |
1:27.71 |
1:31.67 |
3.96 |
| 22 |
Cuellar, Jose S (12)
|
FGUN-0 |
1:28.70 |
1:31.81 |
3.11 |
| 23 |
Navarro, Gabriel V (11)
|
FGNMST |
1:20.89 |
1:32.08 |
11.19 |
| 24 |
Carbonell, Riley R (11)
|
FGMACM |
1:32.80 |
1:32.12 |
-0.68 |
| 25 |
Brown, Jaxon H (12)
|
FGMART |
1:31.74 |
1:34.48 |
2.74 |
| 26 |
Kauefate, Jorge (12)
|
FGSDST |
1:32.47 |
1:38.57 |
6.10 |