| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Garrick, Nathaniel A (14)
|
FGSOFL |
38.34 |
33.92 |
-4.42 |
| 2 |
Lobaton Vargas, Sebastian (13)
|
FGAZFL |
36.91 |
35.50 |
-1.41 |
| 3 |
Hernandez, Adrian G (13)
|
FGSOFL |
37.80 |
35.60 |
-2.20 |
| 4 |
Quintero, Ian A (14)
|
FGUN-T |
37.94 |
36.12 |
-1.82 |
| 5 |
Teran, Andres E (13)
|
FGAZFL |
37.43 |
37.90 |
0.47 |
| 6 |
Lewis, Adrian (14)
|
FGAZFL |
40.28 |
39.26 |
-1.02 |
| 7 |
Zuniga, Gabriel A (14)
|
FGYSF |
40.22 |
40.00 |
-0.22 |
| 8 |
Webb, Lee (14)
|
FGCCPR |
40.98 |
41.98 |
1.00 |
| 9 |
Doyle, Sean R (14)
|
FGSUN |
43.25 |
42.02 |
-1.23 |
| 10 |
Veeser, Nicholas A (14)
|
FGSOFL |
|
43.55 |
- |
| 11 |
Perez, Christian (13)
|
FGPST |
|
43.88 |
- |
| 12 |
Guevara-Cabrera, Samuel (13)
|
FGSOFL |
|
44.17 |
- |
| 13 |
Joseph, Brian C (14)
|
FGCCPR |
|
46.62 |
- |
| 14 |
Porras, Giancarlo G (14)
|
FGAZFL |
48.49 |
49.06 |
0.57 |
| 15 |
Monestime, Sydney (13)
|
FGSOFL |
|
51.12 |
- |
|
Xu, Max (13)
|
FGCCPR |
50.12 |
NS |
- |