| The 2022 Beijing Winter Olympic Games is a major international event held at the historical intersection of China's "two centenary" goals.It is the ideal pursuit and goal of all athletes,coaches and staff in the field of sports to make good achievement in the Beijing Winter Olympic Games and win honor for the country.Racing skating events is the most important event to win medals in China,the result of the competition is the key to the success of our country in the Beijing Winter Olympic Games.It is of great theoretical value and practical significance to grasp the changing trend of the competition results of racing skating events and predict the development level of the competition results of racing skating events in Beijing Winter Olympic Games,so as to fully understand the rules of events,reasonably formulate the preparation objectives,scientifically arrange the preparation plans,and this can help create good results in the competition.Based on the results of the top three racing skating events in the 16 th ? 23 rd Winter Olympic Games,this paper uses the methods of literature review,mathematical statistics,logical analysis,comparative analysis and grey prediction to analyze the project setting and medal distribution of racing skating events.This paper discusses the changing trend of the competition results of the racing skating events by comparing the ring and the fixed base,and forecasts the average results of the top three events of the racing skating events in the Beijing Winter Olympic Games by using the grey prediction theory.The results show that:1.The setting of racing skating events has experienced the development process from non-equilibrium to equilibrium,and group events have become the main added events.The medal distribution of racing skating events is unbalanced;the medals of men's speed skating are mainly concentrated in European countries headed by the Netherlands,while the medals of women's speed skating are mainly concentrated in Germany and the Netherlands;in short track speed skating,the competitive strength of men's events presents the situation of "two matched countries" between South Korea and Canada,and that of women's events presents the situation of "two matched countries" between South Korea and China.2.Based on the progressive coefficient,the results of each event of racing skating events show an overall improvement trend,the improvement range of men's events is greater than that of women's events,and the stability of men's events is better than that of women's events.3.Under the dynamic change of the month on month,the results of men's and women's minor events of speed skating show a relatively similar stage change trend,the results of each minor event in the 21 st to 23 rd Winter Olympic Games are significantly less than those in the17 th to 19 th Winter Olympic Games.Short track speed skating men's and women's events in general did not show obvious stage characteristics.4.Under the dynamic change of the fixed base ratio,the broken line of the fixed base ratio of the male and female speed skating is relatively stable,the broken line of the fixed base ratio of the male and female short track speed skating fluctuates greatly,the change trend of the fixed base ratio between men's and women's speed skating is similar,and the changing trend of the fixed base ratio of men's and women's events in short track speed skating is different.5.Except for the GM(1,1)prediction model of comprehensive accuracy grade 2 established for women's 1500 m speed skating and women's 1000 m short track speed skating,the GM(1,1)prediction model of comprehensive accuracy grade 1 was established for other minor events.Compared with the Pyeongchang Winter Olympic Games,other minor events will show a certain improvement,except for the women's 5000 m speed skating,women's team chasing,short track speed skating,men's 1000 m,women's 500 m,women's 1500 m and women's 3000 m relay,the predicted results of the Beijing Winter Olympic Games will show a slight decline. |
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