was a Grand Prix

motorcycle A motorcycle (motorbike, bike; uni (if one-wheeled); trike (if three-wheeled); quad (if four-wheeled)) is a lightweight private 1-to-2 passenger personal motor vehicle Steering, steered by a Motorcycle handlebar, handlebar from a saddle-style ...

road racer from

Japan Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...

. Itoh was a lifelong employee of Suzuki (mainly concerned with racing and competitions) and began his Grand Prix career in

1961 Events January * January 1 – Monetary reform in the Soviet Union, 1961, Monetary reform in the Soviet Union. * January 3 ** United States President Dwight D. Eisenhower announces that the United States has severed diplomatic and cons ...

at the

French motorcycle Grand Prix The French motorcycle Grand Prix is a motorcycling event that is part of the FIM Grand Prix motorcycle racing season. The Grand Prix was held on different circuits in its history: on the Charade Circuit (Puy-de-Dôme) between 1959 and 1967, L ...

. There he was a DNS in the 125cc Grand Prix and retired on the 3rd Lap in the 250cc Grand Prix. He finished in fifth place in the 50cc world championships, four consecutive years between

1962 The year saw the Cuban Missile Crisis, which is often considered the closest the world came to a Nuclear warfare, nuclear confrontation during the Cold War. Events January * January 1 – Samoa, Western Samoa becomes independent from Ne ...

and

1965 Events January–February * January 14 – The First Minister of Northern Ireland and the Taoiseach of the Republic of Ireland meet for the first time in 43 years. * January 20 ** Lyndon B. Johnson is Second inauguration of Lynd ...

. In

1963 Events January * January 1 – Bogle–Chandler case: Commonwealth Scientific and Industrial Research Organisation scientist Dr. Gilbert Bogle and Mrs. Margaret Chandler are found dead (presumed poisoned), in bushland near the Lane Cove ...

, Itoh became the first Japanese rider with a Japanese motor-cycle (Suzuki) to win a race at the

Isle of Man TT The Isle of Man TT or Tourist Trophy races are an annual motorcycle racing event run on the Isle of Man in May and June of most years since its inaugural race in 1907 Isle of Man TT, 1907. The event begins on the UK Spring Bank Holiday at the e ...

when he won the

50cc The 50 cc class was the ultra-lightweight class in Grand Prix motorcycle racing, and formed part of the Fédération Internationale de Motocyclisme (FIM) World Championships from 1962 until 1983; when the class was replaced by 80 cc. History a ...

Ultra-Lightweight TT The Ultra-Lightweight TT was a motorcycle road race that took place during the Isle of Man TT festival, an annual event at the end of May and beginning of June. Between 1951 and 1974 this race was part of the Grand Prix motorcycle racing season at ...

race. He remains the only Japanese rider to have won an

race. Itoh won two Grand Prix races during his career. Itoh stayed with Suzuki for most of his racing career, even for his brief foray into car racing.

In cars

Itoh competed in a

Can-Am The Canadian-American Challenge Cup, or Can-Am, was an SCCA/ CASC sports car racing series from 1966 to 1974, and again from 1977 to 1987. The Can-Am rules were deliberately simple and placed few limits on the entries. This led to a wide variet ...

style Suzuki Fronte RF single-seater in the JAF Grand Prix

Formula Junior Formula Junior was an international single-seater auto racing, motor racing category that existed between 1958 and 1963. Devised by Italian motorsport promoter Count Giovanni "Johnny" Giovanni Lurani, Lurani, the formula was created as an ac ...

"Junior Seven Challenge Cup" race, held at

Fuji International Speedway is a motorsport race track standing in the foothills of Mount Fuji, in Oyama, Shizuoka, Oyama, Suntō District, Shizuoka, Suntō District, Shizuoka Prefecture, Japan. It was built in the early 1960s. In the 1980s, Fuji Speedway was used for the ...

in 1970. He won the race with an average speed of 130.9 km/h. While he was also supposed to have started in the JAF Grand Prix Tournament (also at Fuji) two weeks later, the Junior Seven Challenge Cup victory remained his only start in a JAF race. Itoh also famously partnered with

Stirling Moss Sir Stirling Craufurd Moss (17 September 1929 – 12 April 2020) was a British racing driver and sports broadcasting, broadcaster, who competed in Formula One from to . Widely regarded as one of the greatest drivers to never win the Formula On ...

in December 1968 for a publicity high-speed run along Italy's '' Autostrada del Sole'', which leads from

Milan Milan ( , , ; ) is a city in northern Italy, regional capital of Lombardy, the largest city in Italy by urban area and the List of cities in Italy, second-most-populous city proper in Italy after Rome. The city proper has a population of nea ...

Naples Naples ( ; ; ) is the Regions of Italy, regional capital of Campania and the third-largest city of Italy, after Rome and Milan, with a population of 908,082 within the city's administrative limits as of 2025, while its Metropolitan City of N ...

. In the end, the average speed attained was , respectable for a car with a mere 356 cc engine.

Motorcycle Grand Prix results

( key) (Races in ''italics'' indicate fastest lap)

References

{{DEFAULTSORT:Itoh, Mitsuo 1937 births Japanese motorcycle racers 50cc World Championship riders 125cc World Championship riders Isle of Man TT riders 2019 deaths