Boet van Dulmen
Boet van Dulmen is a Dutch former Grand Prix motorcycle road racer. Together with Wil Hartog and Jack Middelburg, he was part of a contingent of Dutch riders who competed at the highest levels of Grand Prix racing in the late 1970s. Van Dulmen was known for his skill of riding in wet weather. In 1979, he won his only 500cc race at the Finnish Grand Prix.
in 1982| Year | Class | Bike | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | | Pts |
| 1974 | 250cc | MZ | GER | NAT | IOM | NED | BEL
26 | SWE | FIN
Ret | CZE
27 | YUG | SPA | | | NC | 0 |
| 1974 | 350cc | Yamaha | FRA | GER | AUT | NAT | IOM | NED
12 | SWE | | | | | | NC | 0 |
| 1974 | 350cc | MZ | | | | | | | | FIN
Ret | YUG | SPA | | | NC | 0 |
| 1975 | 250cc | MZ | FRA
Ret | SPA | | GER | NAT | IOM | NED
DNS | BEL | SWE | | | | NC | 0 |
| 1975 | 250cc | Yamaha | | | | | | | | | | FIN
12 | CZE | YUG | NC | 0 |
| 1975 | 350cc | MZ | FRA
12 | SPA | | | | | NED
Ret | | | | | | 36th | 3 |
| 1975 | 350cc | Yamaha | | | AUT
11 | GER | NAT | IOM | | | | FIN
8 | CZE | YUG | 36th | 3 |
| 1975 | 500cc | Yamaha | FRA | | AUT
16 | GER | NAT | IOM | NED | BEL | SWE | FIN | CZE | | NC | 0 |
| 1976 | 250cc | Yamaha | FRA | | NAT | YUG | IOM | NED | BEL
14 | SWE | FIN | CZE | GER | SPA
7 | 26th | 4 |
| 1976 | 350cc | Yamaha | FRA
Ret | AUT | NAT
8 | YUG | IOM | NED
Ret | | | FIN | CZE
Ret | GER | SPA
8 | 25th | 6 |
| 1976 | 500cc | Yamaha | FRA
10 | AUT
13 | NAT
Ret | | IOM | NED
Ret | BEL
13 | SWE | | | | | 25th | 9 |
| 1976 | 500cc | Suzuki | | | | | | | | | FIN
Ret | CZE
8 | GER
6 | | 25th | 9 |
| 1977 | 500cc | Suzuki | VEN | AUT
Ret | GER
10 | NAT
9 | FRA
12 | NED | BEL | SWE | FIN | CZE
Ret | GBR
Ret | | 27th | 3 |
| 1978 | 500cc | Suzuki | VEN | SPA
11 | AUT
8 | FRA
21 | NAT
9 | NED
8 | BEL
Ret | SWE
11 | FIN
7 | GBR
Ret | GER
8 | | 13th | 15 |
| 1979 | 500cc | Suzuki | VEN | AUT
NC | GER
Ret | NAT
Ret | SPA
6 | YUG
5 | NED
4 | BEL
DNS | SWE
3 | FIN
1 | GBR
5 | FRA
Ret | 6th | 50 |
| 1980 | 500cc | Yamaha | NAT
Ret | SPA
18 | FRA
19 | NED
4 | BEL
9 | FIN
Ret | GBR
16 | GER
Ret | | | | | 14th | 10 |
| 1981 | 500cc | Yamaha | AUT
5 | GER
4 | NAT
4 | FRA
8 | YUG
7 | NED
2 | BEL
5 | RSM
Ret | GBR
6 | FIN
Ret | SWE
2 | | 6th | 64 |
| 1982 | 500cc | Suzuki | ARG
11 | AUT
5 | FRA
DNS | SPA | NAT | | | YUG
11 | GBR
Ret | SWE
7 | RSM
Ret | GER
7 | 12th | 23 |
| 1982 | 500cc | Yamaha | | | | | | NED
6 | BEL
7 | | | | | | 12th | 23 |
| 1983 | 500cc | Suzuki | RSA
Ret | FRA
Ret | NAT
Ret | GER
10 | SPA
11 | AUT
10 | YUG
7 | NED
8 | BEL
9 | GBR
8 | SWE
12 | RSM
8 | 11th | 17 |
| 1984 | 500cc | Suzuki | RSA
7 | NAT
7 | SPA
5 | AUT
8 | GER
9 | FRA
Ret | YUG | NED | BEL
Ret | GBR
19 | SWE
7 | RSM
9 | 8th | 25 |
| 1985 | 500cc | Honda | RSA
18 | SPA
Ret | GER
10 | NAT
13 | AUT
8 | YUG
14 | NED
4 | BEL
9 | FRA
Ret | GBR
7 | SWE
14 | RSM
17 | 10th | 18 |
| 1986 | 500cc | Honda | SPA
15 | NAT
6 | GER
13 | AUT
10 | YUG
13 | NED
12 | BEL
9 | FRA
14 | GBR
12 | SWE
13 | RSM
18 | | 12th | 8 |
