In weightlifting competition, the ranking evaluation rules are: the highest weight lifted in the snatch or clean and jerk is the single achievement, and the ranking is evaluated according to the achievement. Because these rules are based on the weight of athletes and the weight lifted, weightlifting competition is particularly inseparable from the calculation of weight, so our answer is haggle over every ounce.

At first, the weightlifting competition was not classified according to the way of lifting, only divided into one hand and two hands. In the 1920 Olympic Games, the events are classified according to the lift and the one-handed and mixed doubles, namely the snatch with one hand, the clean and jerk with one hand and the clean and jerk with two hands. 1924 The 8th Olympic Games added two-handed push and two-handed snatch. Due to the increase in the number of events and trials, the competition time is too long. 1928 In the 9th Olympic Games, the snatch and one-handed clean and jerk were cancelled, and one-handed weightlifting officially withdrew from the international stage. 1972, the international lifting Federation cancelled the recommendation tournament again, only retaining the snatch and clean and jerk.