An Analysis of the Utility of Different Hitting Zones of World-class Male Tennis Players——Taking Djokovic and Federer as Examples
Tennis belongs to the category of confrontation sports across the net,and the athletes'technical and tactical utilization is the key to winning.At present,the analysis and evaluation of the technical and tactical efficacy of small-ball players are mainly based on the hitting on the two-dimensional plane as the observation index.This paper uses video observation,mathematical statistics and other methods to take the hitting position of the world's best tennis players as the breakthrough of the research,based on the former's division of the hitting area of the tennis court,taking the athletes'technical choices and landing point choices in different hitting areas as their personal preferences,and the hitting effect as the objective gain value.The study quantifies the decisions and effects of the world's best tennis players in different hitting zones by constructing a relatively objective and realistic two-dimensional spatial utility function.The study shows that Novak Djokovic has higher utility values than Federer in both serving and receiving games,and his technical and tactical combinations in each hitting area are more reasonable than Federer's.The study also shows that Novak Djokovic is more effective than Federer in serving and receiving games.In terms of technique usage,both players mainly used forehand and backhand pumping techniques,and the proportion of Djokovic's forehand and backhand pumping techniques was more balanced,while Federer's forehand pumping technique usage rate was much higher than his backhand pumping technique usage rate.It is easier to realize the tactical intention of the two players'forehand pumping technique than backhand pumping technique,and it is difficult to realize the tactical intention of the backhand cutting technique.
NETL
NSTL
万方数据
