| Tennis court have influence on players’ performance of their competitive ability,it require their all-aspect and elaborate,various skills,so study should make different strategies under the basis of analysis of different courts, to learn the regularity,this essay especially aim at clay statement stage goal difference and skills, tactics to study,to promote the creation of the Tennis skills,to bring our country scientifically training boundary and better theories more available resources and believable reason. This essay have take ways of document literature,video statistics、logic analysis and comparison analysis,by the methods of data statistics, analysis of 11,10,11 games on clay,video of a part of outstanding Tennis players,such as Wawrinka、Djokovic and Nadal ’s competition on clay, to study their different features and find their differences by data of skills, tactics used at a stalemate they played on clay。Resolution is below:1. 3 players’ all-aspect points loss and gain during stalemate stage is that, the feature of a different racket’s all-aspect points got and loss showed, the shots longer, its percentage in all-aspect points loss and gain is less, and different hit’s percentage in all-aspect points loss and gain is decent as hit adds in turn;The feature of a different skills implied of all-aspect points loss and gain showed that, back-hand stroke spited more than forehand, the effectiveness of various shots skills is amazing, like volley skill;The feature of a different position of all-aspect points loss and gain showed that, left rear and right rear points loss and gain distributed the most,and back-hand goal distributed is more than forehand,the net points gain distributed more than loss, Djokovic’s left rear, right rear goal difference is about 43.90% and 31.90,Wawrinka is 40.20% and 23.00%,Nadal is 38.00%、41.80%;The feature of a different kinds of points loss and gain in all-aspect points loss and gain showed that, winners distributed of the 2 players in games is the most, Wawrinka and his opponents winners ’percentage adds at 42.00%,Djokovic and Nadal is 47.00%、49.00%, respectively.2. 3 players’ different aspect points gain、loss feature in all-aspect points gain 、 loss features during stalemate stage is that, the feature of a different racket’s gain percentage of all gain points,loss percentage of all loss points showed, different hit’s gain percentage 、 loss percentage in all-aspect points loss and gain is decent as hit adds in turn, 14 hit and 14 above’s gain percentage 、 loss percentage is high;The feature of a different position’s gain percentage of all gain points,loss percentage of all loss points showed, the back-hand goal distributed is the most, the back-hand goal gain distributed more,the back-hand goal loss distributed more, the back-hand goal gain distributed less, the back-hand goal loss distributed less, the net points gain distributed more than loss, Djokovic、Wawrinka and Nadal net gain and loss percentage is 26.80% VS 13.90%、15.60% VS 9.80%、15.50% VS 8.90%,respectively;The feature of a different kinds of skills implied of points gain and loss in all-aspect points loss and gain showed that, gain percentage is forehand skill > back-hand skill> volley skill > overhand smash skill, loss percentage is forehand > back-hand skill > volley skill > lob skill, in turn of nomber, forehand skill and back-hand skill implied distributed the most, as the trend is the goal gain distributed more,the goal loss distributed more, especially the back-hand skill, Wawrinka ’s forehand skill and back-hand skill gain percentage is 23.20% VS 29.60%, Djokovic、Wawrinka and Nadal forehand and backhand loss percentage is 36.30% VS40.30%、31.50% VS 42.00%、38.50% VS 41.30%, respectively;The effectiveness of gain percentage of various shots skills like volley skill、 overhead smash skill is perfect, the loss percentage of volley skill is apparent yet, Djokovic、Wawrinka and Nadal net gain and loss percentage is 8.50% VS 6.10%、17.10% VS 7.10%、4.80% VS 3.80%,respectively;3. 3 players’ different aspect key points gain、loss feature in key all-aspect points gain 、 loss features during stalemate stage is that, the feature of a different racket’s key gain percentage of all key gain points, key loss percentage of all key loss points showed, mostly distributed at 5th-8th hit,more than 14 th hit distributed distinctly;The feature of a different position’s key gain percentage of all key gain points, key loss percentage of all key loss points showed, the key goal gain distributed more,the key goal loss distributed more, the key goal gain distributed less, the key goal loss distributed less, the back-hand position key points loss and gain distributed more than forehand, the net key points gain distributed clearly more than loss, Djokovic、Wawrinka and Nadal ’s left rear and right rear key points gain percentage is 47.20% VS 26.80%、28.80% VS 13.60%、32.70% VS 40.80%,respectively;The feature of a different kinds of skills implied of key points gain and loss in all-aspect key points loss and gain showed that, forehand skill and back-hand skill implied, used most,and key point gain 、loss distributed the most yet, other skill like volley skill used less, key point loss distributed is more than key point gain, all of the attack trend is from the baseline to the net, the effectiveness of gain percentage of various shots skills like volley skill is high-effective, the more the skill used percentage, the less point got, the less the skill used percentage, the more point got, Wawrinka and Nadal volley skill key goal difference percentage is 20.00% VS 9.70%、7.10% VS 2.80%, respectively;The feature of a different kinds of key points loss and gain in all-aspect key points loss and gain showed that, winners distributed of the 2 players in games that adds to is the most, the stronger ability of gain winners and the less fault is vital, stable topspin shots,bring the opponent surpass is the tend to be successful on clay,at a stalemate stage. |
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