| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Ekanayake, Hashan (10)
|
FGSF |
1:21.86 |
1:17.27 |
-4.59 |
| 2 |
Ekanayake, Marvan (10)
|
FGSF |
1:22.11 |
1:19.88 |
-2.23 |
| 3 |
Hincapie, Luca (10)
|
FGSOFL |
|
1:24.85 |
- |
| 4 |
Landron, Gabriel (10)
|
FGSUN |
1:26.52 |
1:24.90 |
-1.62 |
| 5 |
Kauefate, Jorge (10)
|
FGSDST |
1:43.02 |
1:25.30 |
-17.72 |
| 6 |
Nimroozi, Nick (10)
|
FGSFTL |
1:42.46 |
1:26.75 |
-15.71 |
| 7 |
Hussey, Lucas (10)
|
FGCCPR |
|
1:28.70 |
- |
| 8 |
Whitney, Maxwell P (10)
|
FGCCPR |
|
1:33.02 |
- |
| 9 |
Tejada, Oliver A (10)
|
FGSDST |
|
1:35.05 |
- |
| 10 |
Herek, Lorenzo C (10)
|
FGPST |
|
1:38.40 |
- |
| 11 |
Korb, Beckhem B (10)
|
FGCSSC |
|
1:41.22 |
- |
| 12 |
Noble-Mattis, Justin A (10)
|
FGPST |
|
1:48.37 |
- |
| 13 |
Barnhart, Miles C (10)
|
FGCSSC |
|
1:53.33 |
- |
| 14 |
Rattray, Kenneth P (10)
|
FGCSSC |
|
1:53.78 |
- |
| 15 |
Taus-Nita, Alexander (10)
|
FGCSSC |
|
2:01.58 |
- |
| 16 |
Agudelo, Camilo (10)
|
FGSFTL |
|
2:09.39 |
- |
|
Cisternas, Maximiliano G (10)
|
FGCSSC |
|
NS |
- |