J. Dolby
Record type: Motorsport Biographies
Competed in
| Race | Position | Time | Speed | Machine |
|---|---|---|---|---|
| 1951 Senior MGP | 21 | 2:54:49.00 | 77.7 | Velocette |
| 1951 Junior MGP | 26 | 3:08:31.00 | 72.06 | Velocette |
| 1950 Junior MGP | 16 | 3:01:37.00 | 74.81 | Velocette |
Record type: Motorsport Biographies
| Race | Position | Time | Speed | Machine |
|---|---|---|---|---|
| 1951 Senior MGP | 21 | 2:54:49.00 | 77.7 | Velocette |
| 1951 Junior MGP | 26 | 3:08:31.00 | 72.06 | Velocette |
| 1950 Junior MGP | 16 | 3:01:37.00 | 74.81 | Velocette |