An analysis on the competitive ability of Li Na's single matches in 2011 French Open

By using the methods of documents,observation,statistics,and logical analysis,this article studies all Li Na's single matches in 2011 French Open.The results show that the differences are very significant on the proportion of first serve,second serve,the chance of service break,the times of service break,win point,total points won,Li Na is more than the opponent(P0.05),these are the key factors to win the game,but her serve speed exist obvious gap compared with the athletes in Europe and America.