| 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 |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1984 Summer Olympics | Shooting | PAR |
Alfredo Coello | |||
| Rapid-Fire Pistol, Men (Olympic) | 54 |
