| Roles | Competed in Olympic Games |
|---|---|
| Sex | Male |
| Full name | John Duncan•Cleworth |
| Used name | Duncan•Cleworth |
| Born | 20 April 1957 in Leigh, England (GBR) |
| Affiliations | Tyldesley Swimming and Water Polo Club |
| NOC | Great Britain |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1976 Summer Olympics | Swimming (Aquatics) | GBR |
Duncan Cleworth | |||
| 400 metres Individual Medley, Men (Olympic) | 22 |