 
| Roles | Competed in Olympic Games | 
|---|---|
| Sex | Male | 
| Full name | José Gerardo•L'Oficial Olivero | 
| Used name | José•L'Oficial | 
| Born | 4 November 1947 in Santiago de los Caballeros, Santiago (DOM) | 
| Measurements | 180 cm / 77 kg | 
| NOC |  Dominican Republic | 
Personal Bests: 400 – 47.1y (1966); 800 – 1:52.5y (1966).
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1968 Summer Olympics | Athletics |  DOM | José L'Oficial | |||
| 400 metres, Men (Olympic) | 7 h6 r1/4 | |||||
| 800 metres, Men (Olympic) | 7 h4 r1/3 | |||||
| 4 × 400 metres Relay, Men (Olympic) | Dominican Republic | 5 h1 r1/2 |