| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Rodriguez, Agustin F (12)
|
FGHSC |
36.39 |
36.13 |
-0.26 |
| 2 |
Martin, Dario (12)
|
FGUN 2 |
|
36.29 |
- |
| 3 |
Pujula, Charles (12)
|
FGHSC |
36.66 |
36.82 |
0.16 |
| 4 |
Denhard, Wyatt J (12)
|
FGPCS |
38.80 |
38.34 |
-0.46 |
| 5 |
Leon, Leonardo (12)
|
FGCM |
37.13 |
38.51 |
1.38 |
| 6 |
Osorio, Carlos M (12)
|
FGCM |
43.45 |
42.08 |
-1.37 |
| 7 |
Schulte, Jake D (12)
|
FGPOMP |
41.87 |
42.17 |
0.30 |
| 8 |
Balbi, Julian A (12)
|
FGSAS |
43.87 |
42.95 |
-0.92 |
| 9 |
Wingold, Charles R (12)
|
FGHAFL |
|
44.11 |
- |
| 10 |
Brunetti, Giuliano P (11)
|
FGPOMP |
44.99 |
44.38 |
-0.61 |
| 11 |
Beleznay, Andras (12)
|
FGPCS |
50.19 |
44.50 |
-5.69 |
| 12 |
Arrese-Igor, Aitor (12)
|
FGPCS |
45.10 |
44.91 |
-0.19 |
| 13 |
Martin, Richard J (12)
|
FGTSA |
46.56 |
45.25 |
-1.31 |
| 14 |
Balbi, Diego N (11)
|
FGSAS |
42.00 |
45.62 |
3.62 |
| 15 |
Moreno, Diego (12)
|
FGCM |
45.49 |
46.42 |
0.93 |
| 16 |
Palacios, Ruben D (12)
|
FGCM |
47.26 |
47.05 |
-0.21 |
| 17 |
Ruf, Justin T (12)
|
FGCSSC |
48.02 |
47.44 |
-0.58 |
| 18 |
Young, Caleb J (11)
|
FGPCS |
46.93 |
47.61 |
0.68 |
| 19 |
Casas, Randy (11)
|
FGBMHG |
46.31 |
47.82 |
1.51 |
| 20 |
Tan, Matthew W (11)
|
FGTSA |
|
48.75 |
- |
| 21 |
Cajuste, Joshua J (12)
|
FGTSA |
47.84 |
49.06 |
1.22 |
| 22 |
Silva Sordo, Christian R (12)
|
FGHSC |
52.98 |
49.78 |
-3.20 |
| 23 |
Escobar, Xander (12)
|
FGPCS |
50.55 |
50.92 |
0.37 |
| 24 |
Famiano, Gianni M (11)
|
FGPOMP |
57.17 |
51.33 |
-5.84 |
| 25 |
Arbelo, Tyler A (11)
|
FGSF |
51.74 |
51.94 |
0.20 |
| 26 |
Baker, Kevin T (11)
|
FGYSF |
|
52.10 |
- |
| 27 |
Kauefate, Abelardo (11)
|
FGSDST |
52.14 |
52.65 |
0.51 |
| 28 |
Dawkins, Mekhi B (11)
|
FGTSA |
53.43 |
53.55 |
0.12 |
| 29 |
Kotegov, Fedor M (11)
|
FGBRST |
|
54.34 |
- |
| 30 |
Suarez, Mario E (11)
|
FGPCS |
56.59 |
54.97 |
-1.62 |
| 31 |
Maftei, Tudor (11)
|
FGSF |
55.00 |
56.18 |
1.18 |
| 32 |
Brito, David (11)
|
FGHSC |
59.42 |
1:00.29 |
0.87 |
| 33 |
Loreto, Miguel E (12)
|
FGSDST |
1:03.36 |
1:03.05 |
-0.31 |
| 34 |
DeVona, Hunter T (11)
|
FGPOMP |
|
1:04.26 |
- |
| 35 |
Hayes, David M (12)
|
FGPCS |
1:08.83 |
1:04.34 |
-4.49 |
| 36 |
Ramos, Elian E (11)
|
FGTSA |
1:08.18 |
1:06.17 |
-2.01 |
| 37 |
Podiapolski, Dennis (11)
|
FGCCPR |
|
1:06.64 |
- |
| 38 |
Dunkley, Justin E (11)
|
FGTSA |
1:02.10 |
1:08.49 |
6.39 |
| 39 |
Gill, Andres F (12)
|
FGHAFL |
|
1:10.28 |
- |
| 40 |
Green, Elliott (12)
|
FGHAFL |
|
1:12.33 |
- |
|
Scott, Liam M (11)
|
FGPOMP |
|
DQ |
- |
|
Garcia, Antonio A (12)
|
FGPOMP |
|
NS |
- |
|
Marzan, Noel R (11)
|
FGTSA |
1:04.29 |
NS |
- |