| This article uses documentary data,video observation,mathematical statistics and comparative analysis to study the technical and tactics of the women’s singles champion Kenin in the 2020 Australian Open to explore various indicators of Kenin’s serve and third beat.Whether the advantages and disadvantages are significant compared with the opponents,summarize the characteristics of Kenin’s technical and tactical use during the whole serving stage for research purposes.The 7 game videos of Kenin and her opponents are used as the source of raw game data.The comparative analysis of the indicators of the opponent’s serve and the third shot at the serve stage,draws the following conclusions:(1)In terms of the basic situation of serving,Kenin’s serve in the first zone is not as good as the opponent’s offensive,but the stability of the first serve is significantly better than that of the opponent,and the stability of the second serve is also excellent.Kenin is inferior to her opponents in terms of offensiveness and stability of serve in the second zone,but the overall scoring effect of the technical and tactical arrangement of serve in the second zone is good,especially in the second serve scoring rate,which has a very significant advantage,and this advantage guarantees Kenin.The overall advantage in the second zone of the serve.(2)In terms of service line selection,Kenin’s 1st and 2nd districts serve mainly inner and outer corners,and inner corner usage> outer corner usage> mid lane usage rate.Kenin has a significant advantage in the usage rate of the inside corners of her serve in the first zone,but the usage rate of the mid lane is very significant compared to the opponent,and there is also a significant gap in the contribution rate of the mid lane from the opponent.Kenin has a significant advantage in scoring rate from the outside corner of the second zone serve.(3)In terms of the distribution of serve points,when Kenin serves in zone one and zone two,there is a very significant gap between the total number of balls served in the center and the opponent.Kenin’s deep-zone scoring contribution rate in the middle of the first zone is significantly behind her opponents,and the second zone has a significant advantage in the deep-zone scoring rate in the outer corner.(4)In terms of the use of the third shot technique,Kenin’s first and second areas serve mainly for forehand and backhand strokes.Kenin’s usage rate of forehand smash in the first zone>backhand smash usage rate,and the backhand smash scoring rate has a significant advantage.Kenin’s backhand smash usage rate in the second zone> forehand smash usage rate,and the forehand smash scoring rate advantage is very significant,and the backhand smash scoring rate also occupies a significant advantage.(5)In terms of line selection for the third shot,Kenin tends to return the ball to the opponent’s center in a straight line in the first zone,and the return slash tends to return the ball to the opponent’s left in the center.Kenin in the second zone tends to return the ball from the left to the opponent’s right in a straight line,and the return slash tends to return the ball from the center to the opponent’s right.(6)Regarding the distribution of the third shot,Kenin’s distribution in the first zone,whether on the left,center or right,is more inclined to the backcourt than her opponents.Kenin’s distribution in the second zone tends to favor the left backcourt and the right midfielder than her opponents. |
