Emeterio Villanueva had the following podium finishes at major championships: 2nd in the 1971 Pan American Games Light-Middleweight class.
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1972 Summer Olympics | Boxing | Emeterio Villanueva | ||||
| Light-Middleweight, Men (Olympic) | =5 |