Dave Chadwick
Dave Chadwick was a Grand Prix motorcycle road racer. His best season was in 1958 when he finished in fourth place in the 350cc world championship, and fifth in the 125cc world championship. Chadwick was killed in 1960 while competing in the Mettet International Road Races in Belgium.Points system from 1950 to 1968:
| Year | Class | Team | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | Points | Rank | Wins |
| 1955 | 250cc | RD Special | IOM
5 | GER
3 | NED
5 | ULS
5 | NAT
- | | | | 2 | 13th | 0 |
| 1956 | 125cc | REF | IOM
5 | NED
- | BEL
- | GER
- | ULS
- | NAT
- | | | 2 | 16th | 0 |
| 1957 | 125cc | MV Agusta | GER
- | IOM
- | NED
- | BEL
- | ULS
4 | NAT
- | | | 3 | 9th | 0 |
| 1957 | 250cc | MV Agusta | GER
- | IOM
6 | NED
- | BEL
- | ULS
2 | NAT
- | | | 7 | 8th | 0 |
| 1957 | 350cc | Norton | GER
- | IOM
- | NED
- | BEL
- | ULS
5 | NAT
- | | | 2 | 14th | 0 |
| 1958 | 125cc | Ducati | IOM
3 | NED
5 | BEL
4 | GER
- | SWE
- | ULS
3 | NAT
4 | | 14 | 5th | 0 |
| 1958 | 250cc | MV Agusta | IOM
- | NED
- | | GER
- | SWE
- | ULS
3 | NAT
- | | 4 | 10th | 0 |
| 1958 | 350cc | Norton | IOM
2 | NED
- | BEL
6 | GER
3 | SWE
- | ULS
- | NAT
5 | | 13 | 4th | 0 |
| 1958 | 500cc | Norton | IOM
5 | NED
- | BEL
- | GER
- | SWE
- | ULS
- | NAT
6 | | 3 | 15th | 0 |
| 1959 | 250cc | MV Agusta | | IOM
3 | GER
- | NED
- | BEL
- | SWE
- | ULS
- | NAT
- | 4 | 11th | 0 |
| 1959 | 350cc | Norton | FRA
- | IOM
6 | GER
- | NED
- | BEL
- | SWE
- | ULS
- | NAT
- | 1 | 16th | 0 |
