Alfredo Lemus had the following podium finishes at major championships: 3rd in the 1975 Pan American Games light-middleweight.
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1972 Summer Olympics | Boxing | VEN |
Alfredo Lemus | |||
| Light-Middleweight, Men (Olympic) | =17 | |||||
| 1976 Summer Olympics | Boxing | VEN |
Alfredo Lemus | |||
| Light-Middleweight, Men (Olympic) | =5 |