| Roles | Competed in Olympic Games |
|---|---|
| Sex | Male |
| Full name | John-Laffnie•de Jager |
| Used name | John-Laffnie•de Jager |
| Born | 17 March 1973 in Johannesburg, Gauteng (RSA) |
| Measurements | 193 cm / 90 kg |
| NOC | South Africa |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 2000 Summer Olympics | Tennis | RSA |
John-Laffnie de Jager | |||
| Doubles, Men (Olympic) | David Adams | 4 |