| Roles | Competed in Olympic Games |
|---|---|
| Sex | Male |
| Full name | Efraín•Díaz Santana |
| Used name | Efraín•Díaz |
| Born | 12 June 1904 |
| Died | 21 August 1979 in Valparaíso, Valparaíso (CHI) |
| NOC | Chile |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1928 Summer Olympics | Fencing | CHI |
Efraín Díaz | |||
| Sabre, Individual, Men (Olympic) | 5 p8 r1/3 | |||||
| Sabre, Team, Men (Olympic) | Chile | 3 p4 r1/3 | ||||
| 1936 Summer Olympics | Fencing | CHI |
Efraín Díaz | |||
| Sabre, Individual, Men (Olympic) | 5 p2 r1/4 | |||||
| Sabre, Team, Men (Olympic) | Chile | 3 p5 r1/4 |