Research purposes: In professional tennis competitions,real-time scores are an important basis for players to choose tactical decisions.For example,the players will adopt special tactical strategies when key scores such as game points,inventory,match points,and break points occur.From the perspective of key points,this article will explore the situation and features of the player serve,serve-in,win game,negative game and key points of the winning and losing game,and study the player’s grasp and outcome of the key points in different situations.Relationships,which kind of key points have an important influence on the outcome of the game.The research method: using literature methods,through the Chinese HowNet,China Academic Journal Network,Chengdu Institute of Physical Education Library and other tools to retrieve and collect key words for the "tennis sports skills and tactics" related literature 588,and screen tennis key points 20 research papers for the study of this article as a theoretical reference.Video surveillance is used to collect2016 four slam semi-finals,finals and 2017 four grand slam finals in a total of 16 games and 60 games in Youku.com,iqie.com,Tencent.com,Le TV,and Wowha.com.Records,statistics on key sub-data captured by the 12 players participating in the competition in the video,and the key sub-data were recorded in detail using the single-player technical statistics.The key data collected and organized were analyzed and analyzed by spss22 statistical software.The following conclusions were obtained through comprehensive analysis:1)In terms of the key points of the excellent men’s tennis player serve and the receiving serve,the three key points have similar grasping rates,and the key scores are high on the whole,and they have strong grasping ability.2)In the study of the relationship between the key points of the winners and the losers and the study of the relationship between the outcome and the outcome,the three types of key points have obvious differences in the data.The three types of key points have a high correlation with the outcome and have an important influence on the outcome of the game..3)In the study of the key sub-stakes and the relationship between the winner and the player in the win field,there are significant differences in the scores of 40 to 0,40 to30/AD and the total scores of the three categories.The key points are better.The greater the chance of winning the game.4)In the study of the key points of the opponent’s negative field and the relationshipbetween the outcome and the outcome,there are significant differences in 0,40,30,and 40/AD and the total key scores of the three categories,which are highly related to the outcome of the competition and have a significant impact on the outcome of the competition..As for the comparison between the winner’s and negative’s key points and the outcomes,the three key score points in the total number have significant differences in the data,which has an important impact on the outcome of the game.5)In the comparison between the key points of the player serve and the serve,the key scores of the three major categories and the total scores of the three categories have significant differences in data and are highly correlated with the outcome of the competition.The higher the key points score,the greater the chance of winning the game.6)There are significant differences in the scores of 40 points,40 points,30 points,and 40 points,and 30 points and 40 points.The match is highly relevant and has an important influence on the outcome of the game. |