| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Linares, Jesus D (10)
|
FGMACM |
1:46.31 |
1:39.70 |
-6.61 |
| 2 |
Aguila, Jorge E (10)
|
FGMWA |
1:40.86 |
1:39.89 |
-0.97 |
| 3 |
Kotz-Agramonte, Jake I (10)
|
UNAT |
|
1:51.80 |
- |
| 4 |
Romeo, Lucas J (9)
|
FGMACM |
1:55.13 |
1:55.67 |
0.54 |
| 5 |
Kokidko, Nicolas N (10)
|
UNAT |
|
1:56.47 |
- |
| 6 |
Nery-Martins, Luca (8)
|
FGOSC |
|
2:00.44 |
- |
| 7 |
Cavani, Emiliano * (10)
|
UNAT |
2:05.19 |
2:01.56 |
-3.63 |
| 8 |
Musiello, Bernardo P (10)
|
FGGRSC |
2:10.35 |
2:06.69 |
-3.66 |
| 9 |
Lozano, Julian (10)
|
FGGRSC |
|
2:07.56 |
- |
| 10 |
Macedo, Eric M (7)
|
FGGRSC |
2:03.50 |
2:19.47 |
15.97 |
|
Caraballo, Nicolas E (9)
|
FGGRSC |
|
NS |
- |