| Roles | Competed in Olympic Games |
|---|---|
| Sex | Male |
| Full name | John•Maddock |
| Used name | John•Maddock |
| Born | 19 October 1951 in Hobart, Tasmania (AUS) |
| Measurements | 188 cm / 81 kg |
| Affiliations | Melbourne |
| NOC |  Australia |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1976 Summer Olympics | Basketball (Basketball) | AUS |
John Maddock | |||
| Basketball, Men (Olympic) | Australia | 8 |
