近年来,由于游泳运动员训练水平的不断提高,在国内外比赛中,运动员彼此之间的成绩越来越接近,有些只相差百分之一秒,有些在决赛时八名运动员几乎同时到达终点,1—8名的成绩仅相差一秒左右。因此,对终点名次判定的准确性要求越来越高。在电动计时器尚未普及的情况下,如何使人工计时和判断名次的方法适应游泳运动高速度发展的需要,这是一个急需解决的问题。 In recent years, due to the continuous improvement of the training level of swimmers, at home and abroad, athletes are getting closer to each other’s achievements, some only differ by one hundredth of a second, and some in the final eight athletes reached the end almost at the same time, 1-8 of the results only a difference of about one second. Therefore, the accuracy of the judgment of the end ranking is getting higher and higher. How to adapt the methods of artificial timing and judgment ranking to the needs of the rapid development of swimming in the situation that the electric timer has not been popularized is an urgent problem to be solved.