| Roles | Competed in Olympic Games |
|---|---|
| Sex | Male |
| Full name | John Allen•Sully |
| Used name | John•Sully |
| Born | 9 April 1920 in Bridgwater, England (GBR) |
| Died | 24 November 2010 in Johannesburg, Gauteng (RSA) |
| Affiliations | Royal Natal Yacht Club, Durban (RSA) |
| NOC | South Africa |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1956 Summer Olympics | Sailing | RSA |
John Sully | |||
| Two Person Heavyweight Dinghy, Open (Olympic) | Alfred Evans | 5 |