| Name | Event | Round | Time | |
|---|---|---|---|---|
| 1 | Bryan ALVAREZ | 200 L Fly | Finals | 2:03.49 |
| 2 | Bryan ALVAREZ | 50 L Fly | Finals | 24.91 |
| 3 | Arnoldo Herrera | 200 L Breast | Finals | 2:20.92 |
| 4 | Bryan ALVAREZ | 50 L Fly | Prelims | 25.08 |
| 5 | Daniel RETANA | 400 L Free | Finals | 4:07.23 |
| 6 | Bryan ALVAREZ | 200 L Fly | Prelims | 2:05.39 |
| 7 | Marcelo VALVERDE | 200 L Free | Prelims | 1:54.88 |
| 8 | Arnoldo Herrera | 200 L Breast | Prelims | 2:22.67 |
| 9 | Marcelo VALVERDE | 200 L Free | Finals | 1:55.06 |
| 10 | Marcelo VALVERDE | 400 L Free | Prelims | 4:08.85 |
| Name | Event | Round | Time | |
|---|---|---|---|---|
| 1 | Costa Rica | 800 L Free Relay | Timed Finals | |
| 2 | Costa Rica | 400 L Free Relay | Prelims | |
| Name | FINA | |
|---|---|---|
| 1 | Daniel RETANA | 705.0 |
| 2 | Arnoldo Herrera | 693.0 |
| 3 | Marcelo VALVERDE | 692.7 |
| 4 | Bryan ALVAREZ | 671.3 |
| 5 | Jose David SOLIS ROSALES | 662.0 |
