Dog racing → Greyhound racing is the sport of racing greyhounds. The dogs chase a lure (traditionally an artificial 'hare' or 'rabbit') on a track until they arrive at the finish line. The one that arrives first is the winner.
Motorcycle racing → Motorcycle racing (also called moto racing and bike racing) is a motorcycle sport of racing motorcycles. Major genres include road racing and off road racing, both either on circuits or open courses, and track racing. Other categories include hill climbs, drag racing and land speed record trials.
Supercross → Supercross is a motorcycle racing sport involving off-road motorcycles on an artificially-made dirt tracks consisting of steep jumps and obstacles. Professional supercross contest races are held almost exclusively within professional baseball and football stadiums.
Car racing → Auto racing (also known as automobile racing or car racing) is a motorsport involving the racing of cars for competition. It is one of the world's most watched televised sports.
Aircraft → An aircraft is a vehicle that is able to fly by gaining support from the air, or, in general, the atmosphere of a planet. It counters the force of gravity by using either static lift or by using the dynamic lift of an airfoil, or in a few cases the downward thrust from jet engines.
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The AMA Grand National Championship is an American motorcycle racing series. The race series, founded and sanctioned by the American Motorcyclist Association (AMA) in 1954, originally encompassed five distinct forms of competitions including; mile dirt track races, half-mile, short-track, TT steeplechase and road races. Also known as flat track racing, the championship was the premier motorcycle racing series in the United States from the 1950s up until the late 1970s when, supercross events held in easily accessible major league stadiums became more popular.
History
In 1932, the AMA sanctioned a race called the Class A Dirt Track championship allowing for motorcycle manufacturers to enter prototype machinery. In 1937, the AMA introduced a new class called Class C which featured street-legal motorcycles in an effort to make motorcycle racing less expensive for ordinary motorcyclists. When manufacturers cutback on racing budgets during the Great Depression, it spelled the end of Class A competition and, the Class C championship became the most important championship. In the years prior to World War II, the Class C championship helped fuel an intense rivalry between Harley Davidson and Indian, the two major American manufacturers of the period. During the Second World War, there were no championships held between 1942 and 1945.
From 1946 to 1953, the AMA Grand National Champion was crowned based on the results of a single race, the Springfield ... Read the rest of this article