| Roles | Competed in Olympic Games | |
|---|---|---|
| Sex | Male | |
| Full name | Efraín•Díaz Santana | |
| Used name | Efraín•Díaz | |
| Born | 12 June 1904 | |
| Died | 21 August 1979 (aged 75 years 2 months 9 days) in Valparaíso, Valparaíso |  CHI |
| NOC | Chile | CHI |
| 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 |
