Gilda Aranda had the following podium finishes at major championships: 3rd in the 1955 Pan American Games 200 metre freestyle.
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1956 Summer Olympics | Swimming (Aquatics) | Gilda Aranda | ||||
| 400 metres Freestyle, Women (Olympic) | 18 |