2018年男子单打前20名运动员关键分时发球特点分析

Analysis of Key Timesharing Service Characteristics of the Top 20 Men’s Singles in 2018

运用文献资料、数理统计等方法,分析2018赛季年终排名前20的优秀网球男子单打运动员在关键分时发球的特点。研究结果显示:(1)在领先和落后的一发时,落点内角和外角居多:在领先和落后的二发时,中路和外角居多;(2)二发球速低于一发球速;(3)领先时的一发和落后时的一发都比二发时的aces球数量多;(4)领先时的一发,得分率较高的是外角,二发得分率较高的是内角;在落后的一发,得分率较高的是内角,二发得分率较高的是外角。

Using literature, mathematical statistics and other methods to analyze the 2018 season year-end ranking of the top 20 outstanding tennis men’s singles players in the key time-sharing service characteristics. According to the results of the study:(1) the inner and outer corners of the falling points are the majority in the leading and backward two shots;(2) the speed of one shot is lower than that of the second shot;(3) the number of aces balls in the leading and backward one shot is higher than that in the second shot;(4) the higher scoring rate is the inner and outer corner when the leading, the higher scoring rate is the middle corner when the second shot is behind. Road and outer corner.