Abstract: Based on the medal grades in the great track and field events in recent five years and the distribution of athlete races, the paper adopts the methods of literature and mathematical statistics to compare the actual strength of different races in various track and field events, and analyses their different influence on the world track and field development. The results show that (1)the competitive strengths of the track and field events are shared the black and the white. The black ranks first both in gold medals number and total medals number, which are respectively 20.4% and 55.5%, the white 12.4% and 41.7% while the yellow is only 0.5% and 3.3%. (2)Although difference characteristics are witnessed in the track and field strengths in different races, there are periodical changes and transfer as the time passes. In 2012 and 2013 world competitions, the black and the white’s dominant position in jumping and long-distance events transferred. (3) The sports performance of different races is closely related with their physiological differences, geographical environment and cultural differences. Therefore, the paper point out that we can not conjecture the correlation between races and sports performances, neither can we assert unbalanced manifestation between track and field events and different sports races.

Key words: competitive sports, sports races, sports performances, track and field events