Sailboat racing
The pilot of a hang glider hangs from a trapeze. Racing hang gliders doesn't come up often as a competitive event, though.
Its a kind of horse racing in which only Arabian horses are allowed.
It is a kind of bet.
greyhound
No you don't have to, but it's highly recommended. My race car didn't have a racing seat the first year I raced and I had racing belts. But it's much safer to have an actual racing seat, no matter what kind of racing your doing.
racing car
horse racing and polo
Pine wood derby.
Auto racing, kart racing, and motocycle racing is hard to predict because there is so much of a chance of an accident happening during the race.
Anything that isn't a long distance training shoe. Unless you're Kenyan, in which case a distance racing shoe might be acceptable.
Thoroughbred is a popular breed of racing horses.