Leonel Pérez had the following finishes at major championships – 1979 Pan-American Games: 57.0 kg. Greco-Roman (1st); 1975 Pan-American Games: 57.0 kg. Greco-Roman (2nd).
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1980 Summer Olympics | Wrestling | Leonel Pérez | ||||
| Bantamweight, Greco-Roman, Men (Olympic) | =11 |