| Roles | Competed in Olympic Games | |
|---|---|---|
| Sex | Male | |
| Full name | Alfredo•Coello Machain | |
| Used name | Alfredo•Coello | |
| Born | 18 January 1939 in Asunción, Asunción |  PAR |
| Affiliations | Club Paraguayo de Tiro Práctico — ? | PAR |
| NOC | Paraguay | PAR |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1984 Summer Olympics | Shooting | PAR |
Alfredo Coello | |||
| Rapid-Fire Pistol, Men (Olympic) | 54 |
