Title: Analysis of tennis single on clay Objectives: The aim of the work was to analyze 10 elite players on clay and also to discover differences in observed aspects of their plays. Methods: The analysis was done by observing video recordings of chosen matches from the French Open 2016 tournament. It was a notational analysis. The results were recorded into record sheets that were prepared in advance. Firstly, descriptive analysis was used to analyze all of the matches. Thereafter, all of the matches were analyzed by descriptive analysis of graphs and measured values. Results: The results show different techniques and styles among male athletes on clay, given the service and its variations, the return and its variations, the length of plays, and other observed aspects; resulting in other tactical differences among the players. Keywords: Tennis, men, differences, serve, return

Return temporal anticipation on the basis of the ball trajectory estimation Abstract Ball-hitting in tennis involves spatio-temporal information about the ball's flight trajectory. We have focused on the temporal part of the information during returning a tennis serve that was simulated by a ball machine. The tested people had occlusion glasses placed on their head, which occluded their vision at the exact time, when the ball was being sent from the ball machine. The tested person did not know which part of the ball flight trajectory would be occluded, nor the ball speed. We examined the effect of part ball flight trajectory occlusion on the correct return timing of the ball. The analysis revealed that the greatest problems occurred while the second third of the ball flight trajectory had been occluded and reached most temporal errors at that time. Keywords: tennis, anticipation, ball flight trajectory, return stroke, occlusion glasses

Return temporal anticipation on the basis of the ball trajectory estimation Abstract Ball-hitting in tennis involves spatio-temporal information about the ball's flight trajectory. We have focused on the temporal part of the information during returning a tennis serve that was simulated by a ball machine. The tested people had occlusion glasses placed on their head, which occluded their vision at the exact time, when the ball was being sent from the ball machine. The tested person did not know which part of the ball flight trajectory would be occluded, nor the ball speed. We examined the effect of part ball flight trajectory occlusion on the correct return timing of the ball. The analysis revealed that the greatest problems occurred while the second third of the ball flight trajectory had been occluded and reached most temporal errors at that time. Keywords: tennis, anticipation, ball flight trajectory, return stroke, occlusion glasses