| Roles | Competed in Olympic Games | |
|---|---|---|
| Sex | Male | |
| Full name | Ralph Theodore•Knoesen | |
| Used name | Ralph•Knoesen | |
| Born | 26 August 1941 in Pietermaritzburg, KwaZulu-Natal |  RSA |
| Died | 8 September 2005 (aged 64 years 13 days) in Durban, KwaZulu-Natal | RSA |
| Measurements | 169 cm / 50 kg | |
| NOC | South Africa | RSA |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1960 Summer Olympics | Boxing | RSA |
Ralph Knoesen | |||
| Flyweight, Men (Olympic) | =17 |
