The discus, which should be thrown as far as possible from the circular cage in which the competitor stands, weighs from 1 to 2 kg depending on whether it is thrown by women or by men. The competitors can wear a support belt but cannot wear gloves or plasters. They have a total of three throws each. The discus thrower must not leave the circular cage before his/her discus has landed.The greatest discus thrower in history is the American Alfred Oerter. He won four consecutive Olympic titles between 1956 and 1968.