Miguel Alonso had the following finishes at major championships – 1975 Pan-American Games: 48.0 kg. Freestyle (3rd).
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1972 Summer Olympics | Wrestling | Miguel Alonso | ||||
| Light-Flyweight, Freestyle, Men (Olympic) | ||||||
| Flyweight, Freestyle, Men (Olympic) | 17 | |||||
| 1976 Summer Olympics | Wrestling | Miguel Alonso | ||||
| Light-Flyweight, Freestyle, Men (Olympic) | =10 |