A Study On Winning Factors Of Straight Serve In Osaka At The 2019 Australian Open

Serving is the only skill in all techniques and tactics of tennis that is unaffected by its opponents.Using the methods of literature,video observation,comparative research,logic analysis and data statistics,this study studied the serving techniques and tactics of the 7-round match between Naomi Osaka and her opponent at the 2019 Australian Open.The results show that:(1)Osaka's entire tournament has not fluctuated in terms of direct loss of serve,playing steadily and scoring more points directly than its opponents,and double errors are not more than their opponents.(2)In terms of serve speed,Osaka is more capable of serving directly than its opponent;second serve can quickly improve its own serve speed.(3)In terms of the success rate and scoring rate of serve,Naomi Osaka is equal to her opponent's success rate but has a significantly higher scoring rate.(4)In terms of service drop point,the drop point of Osaka's direct serve point is basically distributed in the inner and outer corner regions,and the middle track ball distribution is the least,and the same is found in the drop point of the statistical serve direct score.On the second point of departure,the opponent's backhand position is superfluous,and the serve is directly divided into more corners than the outer corners,accounting for more than the inner corners.(5)Osaka in the second shot in the choice of the way,backhand > forehand >forehand > forehand side > other > backhand par > put the ball;in the second strike score points,no score rate is the highest,the lowest score rate,the score rate is higher than the opponent.(6)In the selection of the second-beat line,the use of the backhand slash and the center-right slash is the highest.Osaka's second-beat hit was concentrated in the backcourt.