Paper Title
The Influence of the Technical and Physical Fitness Factors on Tennis Player’s Performances

The purpose of this study is to analyze the technical factors of the tennis game and to analyze what kind of physical factors influence the game situation. This study selected 19 high school male tennis players. The top 100 players in the middle ranking are selected as the upper group, and the top 100 players are the lower group. Measuring instruments were technical measures such as sub, stroke (forehand/backhand), return (forehand/backhand), volley, double fault, forehand error, backhand error, volley error and return error. Physical fitness factors were selected by the United States Tennis Association as fitness factors such as cardiorespiratory endurance, flexibility, strength, muscular endurance, and power. The data processing of this study was conducted by t-test to see the differences among groups. The results of this study are as follows: First, in the case of technical factors, the upper group showed higher first serve-success rate and lower in Bali than the lower group, and the backhand and Bali error were lower. Second, in the case of the physical factors, the upper group showed higher body flexure (flexiblity), sagent jump (power) and muscle strength than the lower group. Keywords- The technical factors, Physical Fitness factors, Tennis game