John Duncan
Record type: Motorsport Biographies
Competed in
| Race | Position | Time | Speed | Machine |
|---|---|---|---|---|
| 1953 Senior MGP | 19 | 2:48:25.00 | 80.66 | AJS |
| 1953 Junior MGP | 11 | 2:48:11.00 | 80.77 | AJS |
| 1952 Junior MGP | 22 | 2:53:51.00 | 78.14 | AJS |
| 1951 Junior MGP | 18 | 3:02:33.00 | 74.41 | AJS |
| 1951 Clubman Senior TT | 21 | 2:04:04.00 | 72.99 | Matchless |
| 1950 Senior MGP | R | AJS | ||
| 1950 Clubman Senior TT | 17 | 2:10:17.00 | 69.53 | BSA |