| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Calvo, Joshua J (10)
|
FGDRSC |
36.73 |
36.96 |
0.23 |
| 2 |
Calvo, Joel J (8)
|
FGDRSC |
44.65 |
43.04 |
-1.61 |
| 3 |
De La Cruz, Santana M (9)
|
FGNMST |
49.36 |
45.19 |
-4.17 |
| 4 |
Palacios, Francesco (10)
|
FGMACM |
53.08 |
46.13 |
-6.95 |
| 5 |
Fanjul, Maximo A (10)
|
FGCANE |
|
46.81 |
- |
| 6 |
Beloyvan, Alexander (10)
|
FGMCDA |
|
47.05 |
- |
| 7 |
Mazzi, Alessio F (10)
|
FGSOFL |
47.58 |
48.22 |
0.64 |
| 8 |
Moya, Kevin (10)
|
FGSOFL |
49.83 |
53.06 |
3.23 |
| 9 |
Reveron, Emihlio * (8)
|
FGNMST |
59.31 |
54.26 |
-5.05 |
| 10 |
Sheyda, Gavin C (10)
|
FGSOFL |
52.71 |
58.04 |
5.33 |
| 11 |
Milosavljevic, Filip (9)
|
FGMBS |
|
1:01.26 |
- |
| 12 |
Tapias, Ethan (10)
|
FGFFSC |
|
1:03.79 |
- |
| 13 |
Sparling, Benjamin (10)
|
FGSGST |
|
1:04.18 |
- |
| 14 |
Kamlani, Zubin (10)
|
FGMCDA |
1:17.77 |
1:06.94 |
-10.83 |
| 15 |
Delvat, Victor P (10)
|
FGCANE |
1:30.80 |
1:09.92 |
-20.88 |
| 16 |
Gonzalez, Keven (9)
|
FGMACM |
1:06.95 |
1:12.95 |
6.00 |
|
Edgerton, Christopher (10)
|
FGDRSC |
|
DQ |
- |
|
Choque, Thomas A (10)
|
FGMBS |
49.59 |
NS |
- |
|
Carbonell, Riley R (9)
|
FGMACM |
53.32 |
NS |
- |
|
Tang, Jason (9)
|
FGSGST |
|
NS |
- |