我们看球时经常会看到对战中双方球员表现的统计数字,总是会把第一发球成功率列出,细心的球迷也会知道顶尖的职业网球选手第一发球成功率能够达到65%,这是十分理想的数据。可能,有人认为要提升第一发球命中率只需要减慢球速就可以,但此举会把一发威力降低,对手破发的机会便大增。 When we look at the ball often see the performance of both players in the battle statistics, always the first success rate will be listed, attentive fans will know that the top professional tennis players first serve the success rate can reach 65% This is a very good data. Perhaps, some people think that to improve the first serve to hit the ball only need to slow down the speed, but this will reduce the power of an attack, opponents will greatly increase the chance of break.