| Takazumi Katayama | |||||||||||||||||||||||||||||||||
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| Nationality | Japanese | ||||||||||||||||||||||||||||||||
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Takazumi Katayama (片山敬済, born April 16, 1951) is a Japanese former Grand Prix motorcycle road racing world champion.
Motorcycle racing career
Born in Kobe, Japan, he was the first Japanese rider to win a motorcycle road racing world championship when he claimed the 1977 350cc world championship aboard a Yamaha. In 1979 he accepted an offer from Honda to develop their exotic oval-cylinder, four-stroke NR500 race bike. After retiring from competition, Katayama became a motorcycle Grand Prix racing team owner.
Career statistics
Grand Prix motorcycle racing
Races by year
(key) (Races in bold indicate pole position) (Races in italics indicate fastest lap)
| Year | Class | Bike | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | Pos. | Pts |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1974 | 250cc | Yamaha | GER | NAT | IOM | NED Ret |
BEL 3 |
SWE 1 |
FIN 5 |
CZE 2 |
YUG Ret |
SPA Ret |
4th | 43 | ||
| 1976 | 250cc | Yamaha | FRA DNQ |
NAT 2 |
YUG Ret |
IOM 2 |
NED 2 |
BEL 3 |
SWE 1 |
FIN 2 |
CZE 3 |
GER 7 |
SPA | 2nd | 73 | |
| 350cc | Yamaha | FRA 4 |
AUT Ret |
NAT 10 |
YUG 3 |
IOM 9 |
NED Ret |
FIN DNS |
CZE 11 |
GER 4 |
SPA | 7th | 28 | |||
| 500cc | Yamaha | FRA | AUT DNS |
NAT | IOM 4 |
NED | BEL Ret |
SWE | FIN Ret |
CZE | GER | 26th | 8 | |||
| 1977 | 250cc | Yamaha | VEN | GER Ret |
NAT 8 |
SPA 1 |
FRA 8 |
YUG 2 |
NED 6 |
BEL 2 |
SWE 4 |
FIN Ret |
CZE Ret |
GBR Ret |
4th | 58 |
| 350cc | Yamaha | VEN | GER 1 |
NAT 3 |
SPA 3 |
FRA 1 |
YUG 1 |
NED Ret |
SWE 1 |
FIN 1 |
CZE Ret |
GBR Ret |
1st | 95 | ||
| 500cc | Yamaha | VEN | AUT DNS |
GER | NAT | FRA | NED | BEL Ret |
SWE | FIN | CZE | GBR | NC | 0 | ||
| 1978 | 350cc | Yamaha | VEN 1 |
AUT 3 |
FRA Ret |
NAT 3 |
NED Ret |
SWE 3 |
FIN 2 |
GBR Ret |
GER 1 |
CZE 6 |
YUG | 2nd | 77 | |
| 500cc | Yamaha | VEN Ret |
SPA 3 |
AUT Ret |
FRA Ret |
NAT Ret |
NED 4 |
BEL 6 |
SWE 3 |
FIN 2 |
GBR 9 |
GER 5 |
5th | 53 | ||
| 1979 | 350cc | Yamaha | VEN | AUT Ret |
GER | NAT | SPA | YUG | NED | FIN | GBR | CZE | FRA | NC | 0 | |
| 500cc | Honda | VEN | AUT | GER | NAT | SPA | YUG | NED | BEL | SWE | FIN | GBR Ret |
FRA DNQ |
NC | 0 | |
| 1980 | 500cc | Suzuki | NAT 6 |
SPA 4 |
FRA 6 |
NED Ret |
BEL | GER 12 |
10th | 18 | ||||||
| Honda | FIN DNS |
GBR 15 |
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| 1981 | 500cc | Honda | AUT 13 |
GER Ret |
NAT Ret |
FRA Ret |
YUG | NED Ret |
BEL | RSM | GBR | FIN | SWE | NC | 0 | |
| 1982 | 500cc | Honda | ARG 6 |
AUT 9 |
FRA DNS |
SPA 6 |
NAT 7 |
NED 8 |
BEL Ret |
YUG 5 |
GBR Ret |
SWE 1 |
RSM Ret |
GER 4 |
7th | 48 |
| 1983 | 500cc | Honda | RSA Ret |
FRA Ret |
NAT 5 |
GER 2 |
SPA 3 |
AUT 4 |
YUG 5 |
NED 2 |
BEL 4 |
GBR 6 |
SWE 3 |
RSM DNS |
5th | 77 |
| 1984 | 500cc | Honda | RSA | NAT | SPA | AUT | GER | FRA DNS |
YUG | NED 8 |
BEL | GBR 8 |
SWE 4 |
RSM Ret |
13th | 14 |
| 1985 | 500cc | Honda | RSA | SPA Ret |
GER 11 |
NAT DNS |
AUT 14 |
YUG Ret |
NED Ret |
BEL 8 |
FRA | GBR | SWE | RSM | 17th | 3 |