A Study On The Performance Characteristics Of Women's Professional Tennis Rankings And Results

In this paper, January 15, 2007 WTA singles rankings of the top 20players and the Sai Linna ? Williams and Venus Williams as the object of study, through literature, statistics, logical analysis and other research method to find the high level of women's professional tennis player the world to participate in professional events characteristic rule, in preparation for the 2012 Olympic Games to provide some reference. Through research the following conclusions:1. Changes in the overall ranking of playersThe first year after the Olympic Games (2009), the ranking of elite female tennis player most volatile, the average fluctuation range of 2.2 ranking, and the Chinese athlete Li's performance the most unstable, and its coefficient of variation of 3.6.2. Regional changes in athletesThe year before the Olympic Games (eg, 2007), elite female tennis athletes the most concentrated areas, the average distance of 7.4 units, and about 3300KM, but the competition entry period of the region's ranking change and no significant contact.3. Changes in athletes resultsIn the elite female tennis players, the most outstanding achievements in Haining, which in the period 2006 to 2009, the average performance coefficient is 6.7. Which results in 2006 and 2007 are the best Henin and Jankovic, 2008, Sai Linna ? Williams, the most outstanding achievements, the average factor score of 5.8; 2009, Sai Linna ? William Sri Lanka's most outstanding achievements, the average factor score of 5.3.4. Athletes compared the frequencyElite female tennis players participating in the Olympic Games frequency of minor changes will occur, the Olympic competition in the Olympics than the non-high-frequency 3%; but the 08 runners in the 2008 Olympic Games in competition with other athletes frequency not significantly different.5. Results and ranking Olympic athletes correlationsCompared with the 2004 Olympic Games, the world to participate in high level female tennis player in 2008 Olympic Games to improve achievement and relevance ranking, indicating that the elite female tennis players on the Olympic Games has increased in importance.