| 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 | GBR |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1976 Summer Olympics | Swimming (Aquatics) | GBR |
Duncan Cleworth | |||
| 400 metres Individual Medley, Men (Olympic) | 22 |
